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Oxygen Essay Examples

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Respiratory System - Muscular system Essay

330 words - 2 pages The respiratory system is oxygen inhaled into the body and oxygen exhaled from the body. The oxygen is carried throughout all the body systems by blood through the blood vessels. The blood is then pumped by the heart. When a person is resting the blood pumps 5 liters of blood, when the person is exercising the heart pumps 7 times the amount of blood.The amount of air you breathe depends on how active you are. When you start to move around and exercise the muscles in your body send messages to your brain telling you that they need more oxygen. Your brain will then send signals to your muscles that control breathing so they can relax and you take fewer breaths and you can get less tired VIEW DOCUMENT
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Lactic Acid Essay

1003 words - 5 pages is just that; a build up in the electron transport chain. "The body has a limited store of about 85g of ATP and would use it up very fast if we were unable to resynthesis. As we exercise pyruvate is formed. When insufficient oxygen is available to breakdown the pyruvate then lactate is produced. Lactate enters the surrounding muscle cells, tissue and blood. The muscle cells and tissues receiving the lactate either breakdown the lactate to fuel (ATP) for immediate use or use it in the creation of glycogen. The glycogen then remains in the cells until energy is required. 65% of lactic acid is converted to carbon dioxide and water, 20% into glycogen, 10% into protein and 5% into glucose VIEW DOCUMENT
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The dangers of non-metals to the environment

376 words - 2 pages Among the most harmful and dangerous non-metal compunds are nitrogen oxides, sulphur dioxide, carbon dioxide, carbon monoxide, and hydrogen sulphide. These can cause devastating effects to human beings, plants, animals and the environment. Matals are generaly less harmful, although lead is extremely toxic.Hydrogen sulphide is a highly toxic gas. It has a very bad smell, often identified in rotten eggs and stink bombs. Hydrogen sulphide interferes with cellular respiration. If inhaled, Hydrogen Sulphide combines with haemoglobin in the bodies of human beings and other mammals. haemoglobin is the substance in blood which carries oxygen to tissues. In combining with the haemoglobin, hydrogen VIEW DOCUMENT
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Enzyme Action Essay

1557 words - 7 pages 1.Problem / PurposeThe purpose of this experiment is to investigate the properties of an enzyme - substrate reaction2.HypothesisHydrogen peroxide is a very reactive compound that can be used for a variety of reactions including bleaching and disinfecting minor wounds. Acting as an oxidizing agent, it is also toxic to cells, hence its value as a disinfecting agent that disrupts the metabolism of bacteria. Our body cells and those of many other animals contain an enzyme called catalase that accelerates the conversion of toxic hydrogen peroxide to water and oxygen gas.In this experiment, if the concentration of the enzyme is increased, then the reaction will proceed faster and if the VIEW DOCUMENT
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Respiratory System Project : All About the Respiratory System - Science - Research Paper

1008 words - 5 pages Hey there! My name is Bubert Lung and my brother’s name is Theo Lung. Together we make up the lungs of the human body. You can probably guess that we are part of the most important body system in the Human Body System, the respiratory system. The respiratory system has the most essential role in the body, it gives us oxygen! Humans breathe about 20,000 times each day! This would not be possible without the respiratory system. This body system includes the nose, throat, windpipe, and lungs. The respiratory system gives oxygen to the body’s cells while taking carbon dioxide out of the human body; if you have no oxygen, your body will not be able to take carbon dioxide out. It is also the VIEW DOCUMENT
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Homeostasis Essay

485 words - 2 pages level of activity is affected by environmental factors. The heart rate slows and cardiac output falls when demands on bodily systems are less are in a secure and non-threatening environment. When demands are high on bodily systems, the heart rate is high.Breathing is essential to life: it allows oxygen to be taken in, carbon dioxide to be given off, and blood to be regulated. Processing food within cells in order to obtain the energy needed for a wide range of cellular activities is dependent on a continuous supply of oxygen to the cells. The respiratory system takes in oxygen and excretes carbon dioxide. Homeostasis allows the respiratory system to take in oxygen in many different VIEW DOCUMENT
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"Respiration is very similar to burning." Is this true? Illustrate your answer by describing 3 similarities and 3 differences between the two

603 words - 3 pages Respiration is a process which releases energy from energy-rich molecules such as glucose. The glucose is converted into energy which is usable for life processes. Burning, or combustion, is a reaction between a substance and a gas to release energy. These two reactions have many similarities but are not the same. This essay will identify some of similarities and differences between the two processes.The first similarity is that both respiration and burning use oxidation to release energy. In respiration, oxygen combines with glucose to release energy which can be used in the body. Also some heat is produced to keep the body warm. Burning normally occurs in oxygen (in form of O2) to form VIEW DOCUMENT
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The Rate Of Photosynthesis Essay

3760 words - 16 pages Anas Ahmed 10JCBiology Controlled Assessment- Investigating the rate of photosynthesisAll living things require energy to carry out their life processes. The green plants obtain their energy from sunlight for their life processes. They capture the solar energy and then convert it into a chemical energy. Photosynthesis is an important process , to plants, because they produce glucose and they use the glucose to produce other important and useful chemicals such as fats, proteins and vitamins. The oxygen released as a by-product, vital to respiration in plants and animals. Therefore, photosynthesis can be considered the ultimate source of energy for life and for nearly all plants and animals VIEW DOCUMENT
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French A-level- Human influence on the environment AO4 - French - Research

635 words - 3 pages Human influences on the environment · Leaching Trees leach nutrients when they are alive, but return nutrients to the soil when they die. When trees are cut down, nutrients get leached but not returned, resulting in infertile soil. · Soil erosion When trees are removed, soil can be washed away by rain as tree roots hold soil together (but there will be no tree roots, as there will be no trees). · Disturbance of the water cycle Trees take up water, when they are cut down, water runs straight into rivers, causing flooding. also, the local climate gets drier as there is much less transpiration occurring. · Disturbance of the balance of carbon dioxide and oxygen When trees die, carbon dioxide VIEW DOCUMENT
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A Mass Spectrometer Inlet System For Sampling Gases Dissolved In Liquid Phases

4128 words - 17 pages gases, among which are oxygen, carbon dioxide, nitrogen, hydrogen, nitrous oxide, nitrogen dioxide, methane, carbon monoxide, and others. The introduction of manometric methods to the study of the reactions in which a gas is either a product or a reactant has greatly facilitated the investigation of these processes. Measure- ment of pressure differences alone cannot, however, tell what gas (or gases) is changing concentration in a system. Separate methods must be employed to this end. Indeed, in a complex system, the usefulness of manom- etry is severely limited. The manometer is also an inherently slow instrument, chiefly because of the intrinsic nature of biological reactions, the VIEW DOCUMENT
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biological molecules and metabolic pathways - Robert Clack - biological molecules and metabolic pathways

1126 words - 5 pages Introduction I am a young scientist who is carrying out a task that has been given to me by my teacher. The task is about biological molecules and metabolic pathways, during this research I have to develop and demonstrate an understanding of this task that I am about to carry out. Water structure Firstly, water is a molecule consisting of two light hydrogen atom attached to each 16-fold heavier oxygen atom. Each hydrogen atom has a nucleus with a single positively-charged proton bounded by a 'cloud' of a single negatively-charged electron and the oxygen atom has a nucleus consisting of an eight positively-charged protons and eight uncharged neutrons surrounded by a 'cloud' of a eight VIEW DOCUMENT
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Terminology Used In Chemistry

517 words - 3 pages metallic character decreases (non-metallic) character decreases down the group.Atomic radius: going down the group the atomic radius increases because the atomic radius decreases along the period from left to rite.Reactivity: going down the group 1 the reactivity of the elements increases while going down the group 7. The reactivity of the elements decreases.Redox reaction: reduction and oxidation reactions are known as redox reactions because they take place simultaneously (at the same time).Reduction (redactant): is the removal of oxygen from a substance, the addition of hydrogen to a substance, the addition of electrons to a substance.Oxidizing agent: is a substance which adds oxygen from VIEW DOCUMENT
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Fire

422 words - 2 pages The scientific name for burning is "combustion." In most cases oxygen from the air combines with some material that can burn. This produces heat. If the process takes place rapidly, we may see flames or an intense glow which is called fire.Chemically during combustion, two atoms of oxygen from the air combine with one atom of carbon from the fuel to form carbon dioxide.How Fires Get Extinguished?An understanding of how fires burn is essential if a fire is to be extinguished. The three (3) major elements of fire are: a) air; b) heat; and, c) fuel. All three of these elements inter-react to create a fire. If the reaction linking the elements is interrupted, the fire will be extinguished.The VIEW DOCUMENT
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How the temperature of a candle’s surrounding area affects time taken for the flame to extinguish - Physics - Practical Report

1801 words - 8 pages Candle Practical Report Rebekah Flood Introduction The aim of the experiment is to determine how the temperature of the candle’s surrounding area affects the time taken for the flame to extinguish. A chemical reaction is the formation of a new substance. Combustion is a chemical reaction because it produces a new substance. This is evident as colour, odour, heat and light are produced. Oxygen and fuel are required for a flame to burn. A candle burns through using liquid wax as a fuel which has been melted by the flame, then drawn up the wick. This wax is then vaporised and broken down into hydrogen and carbon molecules (National Candle Association, 2017). These molecules move up the flame VIEW DOCUMENT
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The Effects Of Exercise On The Pulmonary Ventilation Rate

910 words - 4 pages Respiration is the process that takes place in every living cell to make energy available to the body. Energy is vital for us to carry out many life processes such as movement and so respiration in essential to life. During respiration glucose and oxygen are used in a reaction that produces energy and gives out carbon dioxide and water as waste products. Glucose is obtained by digestion of food and oxygen is taken from the air during a process called breathing or ventilation. Pulmonary Ventilation is the term given to the movement of air in and out of the lungs; the rate of pulmonary ventilation is defined as the tidal volume multiplied by the number of breaths taken per minute. Tidal VIEW DOCUMENT
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An Essay for Tetralogy of Fallot - Neonatal and Pediatric Respiratory Care - Essay

1499 words - 6 pages of the heart known as the right and left ventricles. - Pulmonary (or right ventricular outflow tract) obstruction - a muscular obstruction in the right ventricle, just below the pulmonary valve, that decreases the normal flow of blood. The pulmonary valve may also be small. - Overriding aorta - the aorta is shifted towards the right side of the heart so that it sits over the ventricular septal defect. - Right ventricle enlargement – the size of the right ventricle increases as it tries to pump blood past the obstruction into the pulmonary artery. Normally, oxygen-poor (blue) blood returns to the right atrium from the body, travels to the right ventricle, then is pumped through the VIEW DOCUMENT
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Bio 207 "animal physiology"

495 words - 2 pages of the tube doubles the blood flow is decrease by a factor of 2-If the viscosity increases the blood flow will decrease-Gas exchange: unlike animals that are very small, air diffuses from outside to the inside, however, for us (humans) this is imposible because of our large size. So to get the oxygen to the tissue, we increase surface area to volume ratio-Breathing in the air is different in breathing in the water because:-Water has less oxygen concentration in the water than it is in the air-Water has higher viscosity (resistance of flow) that make it hard to flow water through the gills so it makes it makes it energetically costly than breathing done in the air-Fish use gills to extract VIEW DOCUMENT
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process technology chaper four summary - baker shop safety - research

627 words - 3 pages , explosive, flammable gas, oxidizer, pyrophoric, or unstable. Some gasses can restrict the supply of the oxygen to your body this is known as asphyxiation. Other gasses known as anesthetic gases cause a numbing effect and cause a loss of sensation and will cause unconsciousness. Affected workers will feel dizzy, a loss of coordination, and fall asleep because the nervous system of the body has been chemically depressed. Some toxic gasses can form systemic poisons which enter the bloodstream through the lungs and will make their way to specific organs and tissues. An example of a systemic poison and what it affects, arsine which attacks blood cells and liver and benzene which affects bone marrow. A VIEW DOCUMENT
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Complete debriefing of the cardiovascular system - Human Biology - Review

898 words - 4 pages Cardiovascular System I. Cardiovascular System – Heart and blood vessels A. Functions 1. Contractions of heart generate blood pressure in arteries for flow 2. Keep oxygen rich blood and carbon dioxide rich blood separate 3. One way valves in heart and veins keep blood flowing one way 4. Heart and blood vessels regulate blood flow according to needs of the body 5. Exchange of nutrients and oxygen to the cells and removal of wastes B. Circulation 1. Pulmonary Circulation – to the lungs to exchange oxygen into blood and remove carbon dioxide from the blood 2. Systemic Circulation – circulation to the rest of the body a. Coronary circulation –circulation to the heart i. first branch off the VIEW DOCUMENT
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axascaccacsactgtgrrtvgtgtgtt5rtgy5ft5tt5r5gt5tf5yg5ftgtrgtg - accacac - accaca

1580 words - 7 pages . The Heart is responsible for the increased heart rate and blood pressure during exercise, this because when there is a higher demand for oxygen during exercise in order for respiration to occur in cells for that extra energy required during exercise, the hearts muscle tissue then begins to contract at a higher rate on order to push the blood around the body through the blood vessels at a much faster rate, ensuring that oxygen needed is carried to the cells through the blood stream in the blood vessels. When the heart contracts the ventricles are responsible for the increased pressure as this part of the heart pushes the oxygenated blood with more force, from out the bottom of the heart and to VIEW DOCUMENT
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Development of the Periodic Table - Valley View Secondary School - Essay

429 words - 2 pages Adriane Quigao Development of the Periodic table The periodic table is a table of arrangement of chemical elements in order of atomic number. The table is organised in rows, so that elements with the similar atomic structure and similar chemical properties, appear in vertical columns. Antoine Lavoisier was the first to write an extensive list of elements containing 33 elements and distinguished between metals and non-metals. He was scientist who is known as the “Father of Chemistry”. He named the elements carbon, hydrogen and oxygen, also discovered oxygen’s role in combustion and respiration, also established that water is a compound of hydrogen and oxygen. (1743-1794) Jons Jacob Berzelius VIEW DOCUMENT
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Photosynthesis Cellular Respiration Lab - Class - Lab

1232 words - 5 pages Name _________________________________ Date _____________ Period ______ Lab: Investigating Photosynthesis and Cellular Respiration Background: All organisms are dependent on a healthy carbon dioxide-oxygen balance. Photosynthesis and cellular respiration are key processes in maintaining this balance. Plants, through the process of photosynthesis, use energy absorbed from sunlight, water, and carbon dioxide to produce sugars and oxygen. Animals and plants, through the process of cellular respiration, use oxygen and sugars to produce carbon dioxide, water, and the energy needed to maintain life. Purpose: To determine how carbon dioxide cycles through a biological system by performing the VIEW DOCUMENT
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Origin of life study guide: about how did the earth and early life formed - biology - Essay

1025 words - 5 pages Origin of life Origin of universe · 13.8 billion years ago Origin of Earth · 4.5 billion years ago · Solar system is forming · Rocks and meteors are colliding · Heavy stuff go to the center · As earth spins it is getting denser · Not dense enough to hold gases so no atmosphere · Icy rock · Inside of becomes molten · Pressure · Causes lots of eruptions and geysers · Primordial atmosphere · Volcanic gases start to form · H20, CO2, NH3, N2, H2S · Reduces oxygen · So no o2 · Important because life could not have formed if there was oxygen around · Oxygen would just break those organisms down · Gases were escaping · Formation of monomers · Amino Acids, Glycerol, Monosaccharides · From primordial VIEW DOCUMENT
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Biology - Cardiovascular, Digestive, Respiratory and Urinary Systems - Touro College - Biology 101 - Cardiovascular system

2572 words - 11 pages Test #2 The Cardiovascular System: The Heart & The Blood Vessels: Function: To transport Oxygen (O2) to the cells & tissues in the body and remove Carbon Dioxide (CO2) Parts of the Cardiovascular System include: 1. The Heart – the pump 2. The Blood – the fluid 3. The Vascular System – a series of blood vessels The Heart: A hollow, muscular organ that lies between the lungs Parts: 1. Pericardium – a membrane that surrounds the outside of the heart 2. Myocardium – the main part of the heart that consists mainly of cardiac tissue 3. Endocardium – a membrane consisting of connective & epithelial tissue that lines the inner surface of the heart Septum – a partition that separates the left VIEW DOCUMENT
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Study Of Lung Capacity Of An Individual By Using Spirometer

2878 words - 12 pages Title : Study of lung capacity of an individual by using spirometerIntroduction :RespirationThe primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system's means of getting oxygen to the blood.Respiration is achieved through the mouth, nose, trachea, lungs, and diaphragm. Oxygen enters the respiratory system through the mouth and the nose. The oxygen then passes through the larynx (where speech sounds are produced) and the trachea which is a tube VIEW DOCUMENT
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Hypothermia, The Diving Reflex,And Survival

840 words - 4 pages ABSTRACTThis paper reviews the contributions of hypothermia and the mammalian diving reflex (MDR) to human survival of cold-water immersion incidents. It also examines the relationship between the victim's age and MDR and considers the protective role played by hypothermia. Hypothermia is the result of a reduced metabolic rate and lowered oxygen consumption by body tissues. Although hypothermia may produce fatal cardiac arrhythmias such as ventricular fibrillation, it is also associated with bradycardia and peripheral vasoconstriction, both of which enhance oxygen supply to the heart and brain. The MDR also causes bradycardia and reduced peripheral blood flow as well as laryngospasm, which VIEW DOCUMENT
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Lab report on lakes and health of rivers - AP environmental - lab report

584 words - 3 pages could have affected the stream in any way. 2. Then we took water temperature, average width and average depth. Using the thermometer/tape measurer both 3 times and getting the average. Using the measurng tape in 3 different places. We also took the average velocity of the river. 3. Then we took the chemical measurmentsof the river. pH, dissolved oxygen, tempterature, number of nitrates, phosphates and turbidity. 4. We then took samples of leaves and biomass in the river to find macroinvertebrates. We would find these creatures and organize them in ice trays. Then we would classify them in 1 of the 3 groups that determined how resistant to pollution they were. Data Tables/ Charts: Test 1 Test 2 VIEW DOCUMENT
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west with the night by beryl markham chapters 1-3 - stony brook writing 102 - chapter review

461 words - 2 pages of stories that she is complying together for the reader was not a creation, but just a remembrance of regular experiences. I think in her inability to see the master piece of her work, she creates a tone of expecting greatness for the reader. Because we read the introduction, we know that this book was well received by a variety of audiences, and it was a best seller. Markham recalls that the flight that took her to Nungwe was medical related and that someone needed oxygen, but it kind of becomes her mocking someone for going to the troubles of getting the message to her because during those times, it would’ve taken longer for her to get the message than the person in need of oxygen VIEW DOCUMENT
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A Closer Look Into The Respiratory System - BIOS105 - Project Proposal

527 words - 3 pages Elizabeth Knox BIOS105 May 20, 2018 Proposal Outline I. Respiratory System a) The respiratory system is the set of organs that allows someone to breathe and exchange oxygen and carbon dioxide throughout the body. An example of respiratory system is the human's nasal passages, larynx, trachea, bronchial tubes and lungs. b) All the other 5 major systems help the respiratory system work at its best. The systems include the digestive system, skeletal system, circulatory system, muscular system, and finally the nervous system. The digestive system breaks down food into simpler substances that the body can use including proteins. This helps the respiratory system because the lungs need nutrients VIEW DOCUMENT
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bee movie with a cherry on top is that ok with you - gfdrftjjijkjihub - bvfcfhbjnknjkn k

611 words - 3 pages evidence for the Law of Constant Proportions. 5. Write a definition for the Law of Constant Proportions (p 226) For example, carbon dioxide (CO2) always contains the same relative amounts of carbon and oxygen (about 27 per cent of the mass is made up of carbon). It does not matter whether the carbon dioxide forms from the reaction of sherbet in your mouth, or from the reaction in the engine of a motorcycle, this proportion is fixed because every molecule of CO2 is formed when one carbon atom bonds with two oxygen atoms. This law helped to shape our understanding of the way atoms bond together. INVESTIGATION 8.1 Conserve that mass! p 214 Report your findings using your yellow Experiment Record Book VIEW DOCUMENT
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All about Iron

481 words - 2 pages Iron is one of the most common elements on earth; it is also one of the oldest metals and was first fashioned into useful and ornamental objects at least 3,500 years ago. Steel/Iron is quite a common building material and it's used for building things such as bridges, cars, pots, trains, fences and office supplies. Iron ore, also known as Hematite is found and mined in Brazil; it is then taken to blast furnaces located around the globe where the ore is mixed with carbon as carbon is more reactive than iron, so it can push out iron from iron dioxide with high temperatures to get rid of the oxygen, this Reaction, in which oxygen is removed is called a reduction reaction.Iron {Fe}Iron from the VIEW DOCUMENT
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Unknown report: Streptococci vs Staphlococci - SFSU microbiology - research paper

1529 words - 7 pages order to perform biochemical tests. The biochemical tests were chosen definitively for Gram-positive bacteria from the experiments in the lab manual. Following, a Cultivation of Anaerobes was conducted. Oxygen from the outside of the anaerobe jar is prevented from entering inside because of a tight-fitting lid. The chemical packet inside the jar was designed to give off a series of reactions when water has been added to it, converting oxygen into water, and thus creating an anaerobic environment. In this experiment, three agar plates were first labeled name and lab course. Each plate was inoculated using a sterile loop, each organism individually streaked. Both plates were inverted by VIEW DOCUMENT
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"Investigating The Distribution Of Streams Invertebrates"

3559 words - 15 pages into the net so that the species were washed in by the current;6) Then we put the species that were inside of the net into a white tray and identified the species and counted them;7) At each sample site we also measured:a) Temperature by putting a thermometer in the water until it stabilised, then we recorded it;b) Dissolved Oxygen by using a probe which we stirred, for about 30 seconds, in the water encouraging the water to move, then we recorded it;c) pH by using a pH meter which was put in the water, then we recorded it;d) Depth of water by using a metal measuring tape, then we recorded it;e) Velocity by using a probe that we put in VIEW DOCUMENT
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How to make Slime

367 words - 2 pages guk, you can scrap extra from the sidesNow play! It may stain things, could get stuck in carpets, who knows?The Science:Elmer's glue is copolymer polyvinylalcohol, PVA, a plastic made from oilBorax is a natural mineral mined from the earth made of boron, sodium, oxygen and water.When you add water to elmer's glue the PVA, being unstable, starts to dissolve in the water.When you add the wet borax, it is slightly acidic, and it reacts with the PVA to crosslink.This crosslinking causes the guk to undergo an irreversible gelation reaction much like when an egg boils to become a hard boiled egg. It is safe to handle, but hey! let's not eat it...OK? VIEW DOCUMENT
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Wake Up Call - Heart Case Study - PUBH 3400 - Heart Case Study

904 words - 4 pages moving away. She is also going through menopause which can explain her symptoms, but this increases her stress and fatigue as well as a change of hormones throughout the body which is another stress of the body. 4. Denise has not suffered from a heart attack yet. She had suffered from a cardiac ischemia. This is when a big decrease in blood flow occurs drastically decreasing oxygen to the heart. 5. Cholesterol; a compound of the sterol type found in most body tissues. Cholesterol and its derivatives are important constituents of cell membranes and precursors of other steroid compounds, but a high proportion in the blood of low-density lipoprotein (which transports cholesterol to the tissues VIEW DOCUMENT
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Discusses Descartes' Statement Cogito Ergo Sum (I Think Therefore I Am)

1240 words - 5 pages . Now to expand this theory, I believe that anything that can cause ripples in an environment exists. Consequently, most anything that we can perceive (and even more that we can't) exist. Furthermore, just because a thing doesn't think (for example: rocks, terra, tomatoes, ants) doesn't mean it doesn't exist, or that it isn't.My belief also goes for the lack of an existence. For instance, if all the oxygen were to suddenly and instantaneously transport to a different place then a huge vacuum would form in the previous location of all the oxygen. The sudden appearance of oxygen would crowd up the new location and may even force out something else that also exists because that movement also VIEW DOCUMENT
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adult health post operative case study - eidth cowan university - assignment

3912 words - 16 pages having a moderate sanguineous ooze. (Shafi, 2016) However, the three major nursing diagnosis to be prioritized for Kelly are as following: 1) Nasal Infection 2) Nasal Packaging 3) Oxygen saturation levels. Planning: The nursing care plan is a detailed process for the care plan to be provided for the given nursing diagnosis. (Ahtisham & Jacoline, 2015) The nursing plan for the first prioritized diagnosis of nursing infection consists of the importance of hand hygiene by the healthcare providers to avoid hospital acquired infection for the patients, (Abbas & Pittet, 2016) regular checks on the surgical site (Sepsis Alliance, 2017) and aseptic cleaning techniques to clean the surgical site VIEW DOCUMENT
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Evolution From A Molecular Perspective

3352 words - 14 pages evolutionism, can exist symbiotically due to the fact that both views have very good points.Hemoglobin: Comparisons between speciesOf all the proteins in living things, hemoglobin is 'the second most interesting substance in the world,' as American biochemist L. J. Henderson once stated (Hemoglobin, 4). However bold this statement seems, it must be realized that hemoglobin is, at least in the scientific world, by far the most studied and most discussed substance in the human body, as well as in other living organisms. Hemoglobin is the carrier in blood that transports oxygen to our tissues and carbon dioxide out of our body, changing colors as it does so. Hence, hemoglobin has long been VIEW DOCUMENT
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In This Unit I Have Learned A Lot About Creation

649 words - 3 pages different kinds of Evolution. Chemical Evolution, Cosmic Evolution, Geological Evolution, and Micro and Macroevolution. Those last two I already talked about. The theory of Chemical Evolution is that we all came from amino acids. They did an experiment about it, proving their theory right. But there were some problems. In the experiment it had a lack of oxygen because it wouldn't work when oxygen was present, so they think that it happened underwater. That doesn't work either. There are two different types of amino acids, right and left handed ones. Right-handed ones are deadly, but left-handed ones are the ones we all have. But, in his experiment, they came out fifty percent right-handed, and VIEW DOCUMENT
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I Had To Join

543 words - 3 pages Hydrogen makes up seventy-five percent of the earth's mass.Hydrogen is usually found on earth in combination with oxygen, carbon, and nitrogen. To be used it must be separated from these.Hydrogen is a very safe element when used as an energy source, it emits nothing into the air but water. It also has more uses then electricity. Hydrogen is primarily used in manufacturing ammonia, petroleum refining, hydrogen peroxide, and in the synthesis of methanol. It is also used to retrieve metals from their compounds because it is a good reducing agent. It can also be used in space shuttles for fuel, to provide heat, electricity, and drinking water.In the near future hydrogen may be VIEW DOCUMENT
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sheep heart lab report for fhhs science class - forest hills high school/ science - research paper

631 words - 3 pages to transport oxygen from the lungs to the tissues of the body. 4. Which side of the heart is the strongest? Why? The left side of the heart is the strongest, because the left ventricle needs to pump blood to the whole body, while the right side containing the right ventricle only pumps blood to the lungs. 5. If Mr. C has a heart attack, which side of the heart is affected? Explain. If Mr. C has a heart attack, then either side of the heart can be affected, because since there are 2 main coronary arteries, the right and left, it depends which coronary artery has plaque, built by fat and cholesterol, which blocks the blood flow to the heart causing the heart to be starved of oxygen-rich blood. VIEW DOCUMENT
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Science Biology Exam Study For Grade 11 Students - dddd - dddd

640 words - 3 pages incomplete combustion and the products involved; complete combustion(full supply of oxygen and forms carbon dioxide and water ) , incomplete combustion( incomplete supply of oxygen and forms carbon monoxide and/or carbon and water ) · Identify the properties of acids and bases: acid tastes sours · Understand/identify single and double displacement reactions, synthesis, decomposition and exothermic/endothermic: single displacement: reaction between an element and a compound,double displacement is between two compounds to form ppt /gas/liquid, synthesis: reaction between two elements/comopounds to form one product, decomposition: breakdown of a compound into smaller fragments Optics · Use the laws of VIEW DOCUMENT
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the heart is one of the most import thing in your body. - health - essay

457 words - 2 pages up with deoxygenated blood the right atrium contracts while the chordae tendineae pull on the tricuspid valve, opening it for blood to flow down into the left ventricle. Once the left ventricle fills up with blood the chordae tendineae pull the tricuspid valve shut and the left ventricle contracts pushing the blood through the pulmonary artery. Once the blood pushes through the pulmonary artery the pulmonary semilunar valve shuts so that no blood falls backwards into the heart. The blood then flows into the pulmonary trunk and into the lungs. Finally, the lungs supply the blood with the oxygen that it needs and the blood is then on its way back to the heart, completing the Pulmonary Circuit VIEW DOCUMENT
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Investigation for a required practical - biology - biology

491 words - 2 pages of two layers that face each other and surround the cell. Chemically, each layer is formed by fatty molecules called phospholipids. Each molecule has an end that repels water, called its head, and another end called the tail that repels water. The nature of the phospholipids in the membrane helps keep it fluid and semi-permeable, so that some molecules like oxygen, carbon dioxide and small hydrocarbons can move through it and enter the cell, while other molecules that might be harmful or unneeded by the cell are kept out. A cell membrane also contains proteins, either on its inner or outer surface – called peripheral proteins – or embedded in the membrane and called integral proteins VIEW DOCUMENT
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jgbhj

441 words - 2 pages 6. Quartz- Quartz has been known since pre-historic times. Quartz is the most common mineral found on the surface of the earth. It's found on many types of igneous, metamorphic, and sedimentary rocks. This natural form of silicon dioxide is found in a wide range of colors and varieties. http://www.mindat.org/min-3337.html7. Coal- Coal is a sedimentary rock found deep in the earth. It is composed mainly of carbon, hydrogen, and oxygen. It forms from buildup of organic matter, found along the edges of shallow seas, lakes, or rivers. Flat swampy areas that are episodically flooded are the best candidates for coal formation. http://www.worldcoal.org/coal/8. Mercury- the chemical formula for VIEW DOCUMENT
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Lewis Acids And Bases

380 words - 2 pages acid and trimethylamine is Lewis base. A curved arrow originates from nitrogen atom and point to hydrogen atom. The initial product of the acid-base reaction is trimethylnitronium chloride.In the below example number two, aluminum chloride is Lewis acid and dimethyl ether is Lewis base. A curved arrow originates from oxygen atom and point to aluminum atom. The initial product of the acid-base reaction is aluminum dimethyl ether chloride.(1)(CH3)3N + HCl→(CH3)3N+H + Cl-(2)AlCl3 + CH3OCH3→Al-Cl3O+(CH3)2ReferencesWikipedia, the free encyclopedia. Lewis Acid.http://en.wikipedia.org/wiki/Lewis_acidWikipedia, the free encyclopedia. Lewis base.http://en.wikipedia.org/wiki/Lewis_base VIEW DOCUMENT
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Monocytes and macrophages with the stucture of atoms - Tati fifi - Bio App

1279 words - 6 pages electrons to the energy level diagram of C. 2p __ __ __ 2s __ 1s __ 10. What is the electron configuration of oxygen? Draw the energy level diagram for oxygen. Notice that oxygen has unpaired electrons. This means that oxygen is paramagnetic, and will interact with magnetic fields. 11. Write out the electron configurations for Ne, Na and Al: You may have noticed that a lot of the electron configuration is repetitive. Every atom has 1s electrons. Comparing Ne, Na and Al shows that they are very similar up to the configuration of Ne. There is a shorthand notation that can be used. Na is basically [Ne] 3s1 and Al is [Ne] 3s2 3p1. The previous noble gas is used as a summary VIEW DOCUMENT
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standards of basic monitoring in anaesthesia - university of venda - research paper

1063 words - 5 pages exercised in comparing the emergency with the anesthetized patient’s condition and in the selection of the person left responsible for the anesthetic during the temporary absence. 2. STANDARD II During all anesthetics, the patient’s oxygenation, ventilation, circulation and temperature shall be continually evaluated. FROM: Committee on Standards and Practice Parameters 409-1.3 (PA) SUBJECT: Standards for Basic Anesthetic Monitoring Page 2 DATE: March 8, 2015 FOR BOD / HOD INFORMATION 2 2.1 Oxygenation – 2.1.1 Objective – To ensure adequate oxygen concentration in the inspired gas and the blood during all anesthetics. 2.2 Methods – 2.2.1 Inspired gas: During every administration of general VIEW DOCUMENT
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Gone Fishin' ("The Fish" By Elizabeth Bishop)

971 words - 4 pages ' analogy can refer to the fish's age. Although faded and aged he withstood the test of time, like the wallpaper. Bishop uses highly descriptive words like 'speckled' and 'infested' to create an even clearer mental picture. The word 'terrible' is used to describe oxygen, and this is ironic because oxygen is usually beneficial, but in the case of the fish it is detrimental. The use of 'terrible' allows the reader to visualize the fish gasping for breaths and fighting against the 'terrible oxygen,' permitting us to see the fish's predicament on his level. The word frightening does essentially the same thing in the next phrase, 'the frightening gills.' It creates a negative image of something VIEW DOCUMENT
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Explanation of how the sphere is linked to others - asss - asasas

880 words - 4 pages Subsystem Description of the subsystem and how it works Explanation of how the sphere is linked to others Atmosphere The atmosphere is a thin blanket of gases that surround the earth. It transport heat and water and filters out deadly ultraviolet radiation. Furthermore the atmosphere is always on the move. When the atmosphere moves, it evens out differences in temperature between the chilly poles and warm equator. Warm air moves towards the poles and cold air towards the equator. Mainly Nitrogen, Oxygen as well as argon, carbon dioxide, helium and neon. The atmosphere links with all other subsystems to influence the climate, trigger geological processes and affect life all over the earth VIEW DOCUMENT
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