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Introduction: Carassius auratus‚ the goldfish‚ is a poikilotherm as its body temperature fluctuates based on its surrounding environment. Like most fish‚ the goldfish depends on a balanced metabolism to survive; therefore‚ it is important to understand the relation that these poikilotherms have with their environment. An environmental factor that regulates metabolism is temperature. Since fish have temporal ranges that determine their overall success it is important to understand their metabolic
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BIOLOGY 373 – Principles of Human Physiology 2 Instructor: Dr. Heidi Engelhardt ext 38133‚ B1-280 heidi.engelhardt@uwaterloo.ca Winter 2013 Course Description: This course outlines the physiology of several major organ systems of the human body. Topics include the central nervous system‚ sensory physiology‚ endocrine regulatory mechanisms‚ renal function‚ digestion‚ the endocrine control of metabolism and growth‚ and reproduction. The combination of BIOL 273 and BIOL 373 covers all the major
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PCP:PCP and its Affects on the Human Body PCP or Phencyclidine is a very deadly drug in today ’s society. PCP was developed in the 1950 ’s as an anesthetic. Use of PCP in humans was discontinued in 1965‚ because it was found that patients often became agitated‚ delusional‚ and irrational while recovering from its effects. PCP is illegally manufactured in laboratories and is sold on the street by such names as "diabolic" "wet" and "digital". The variety of street names for PCP reflects its bizarre
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Homeostasis: An Analogy Reginald Robinson BIO1000 Capella University The homeostatic mechanism that regulates body temperature is called hypothalamus. It senses when your body’s temperature is too hot or cold. When your body is too hot‚ the hypothalamus senses that a change needs to be made so to reverse the heating process‚ thus reducing the amount of blood that is being sent to that area. This same action will cool the body and return it to a normal temperature. The ways in which
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1. Do you think mimicking a genuine smile can help to reduce levels of stress? Why or why not? Stress is a negative feeling induced by a wide range of stressors which brings forth changes to our body physically and mentally. Intense and prolonged pressure would make us stressful and lead to the warning signal of our body showing that we are more vulnerable to stress-related disorders such as heart disease and depression (Kemeny‚ 2003). Therefore‚ when human beings encounter stress‚ they would
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Concepts of Lifetime Fitness September 1‚ 1997 Homeostasis is the state of equilibrium in which the internal environment of the human body remains relatively constant. Two excellent examples of homeostasis are how the body maintains a constant temperature and blood pressure during strenuous physical activity or exercise. Although there are many other activities in the body that display homeostasis‚ I will only discuss these two. Temperature in the human body is usually kept at approximately
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Surface Area to Volume Ratio and the Relation to the Rate of Diffusion Aim and Background This is an experiment to examine how the Surface Area / Volume Ratio affects the rate of diffusion and how this relates to the size and shape of living organisms. The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small cells enable nutrients and oxygen
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Michel Foucault- Right of Death and Power over Life The concept is important. Don’t get to the details. * In ancient Roman times‚ power of the sovereign over his subjects could be exercised in an absolute and unconditional way. The king had the authority to directly expose the life of his subjects in times of war and thus he held an indirect power over them of life and death. * During the classical age in the West‚ this death that was based on the right of the sovereign was not manifested
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P5: Explain the concept of homeostasis. P6: Follow guidelines to interpret collected data for heart rate‚ breathing rate and temperature before and after a standard period of exercise. M2: Discuss the probably homeostatic responses to changes in the internal environment during exercise. M3: Present Date collected before and after a standard period of exercise. D2: Evaluate the importance of homeostasis in maintaining the healthy functioning of the body. P5 Homeostasis is a natural
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