Chapter 8.1 1. List the four biological levels of organization in a human in order from most simple to most complex. Cells‚ tissues‚ organs‚ organ systems 2. Define the term “homeostasis”. The tendency of the body to maintain a relatively constant internal environment. 3. What does the term “feedback system” refer to with respect to homeostasis? A cycle of events in which a variable‚ such as body temperature‚ is continually monitored‚ assessed‚ and adjusted. 4. List the three components
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Essay Reproductive system The reproductive system is a system of organs within an organism which work together for the purpose of reproduction. Hormones and pheromones are also important accessories to the reproductive system. The major organ of the reproductive system includes penis and vulva as well as a number of internal organs including the testicles and ovaries. Most other vertebrate animals have generally similar reproductive systems consisting of gonads‚ ducts‚ and openings. Human reproduction
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System- has a slightly slower onset and a longer duration of action‚ and uses highly specific and powerful hormones to control its response. Glands of the Endocrine System- these glands secrete unique and potent chemicals called hormones directly into the bloodstream. ENDOCRINE DISEASES Results of dysfunction of or increase/decrease of secretion of hormone Symptoms and signs- growth abnormalities‚ emotional disturbances or psychiatric problems; skin‚ hair‚ and nail changes; edema;hypertention
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Noonan Syndrome Nicole Mitchell Dr. Hendricks Principles of Biology 1114 April 19‚ 2013 Mostly everyone in the world has heard of some type of genetic disorder. But most people haven’t even heard or understand about Noonan Syndrome. Noonan syndrome is a genetic disorder characterized by distinctive facial features‚ developmental delay‚ learning difficulties‚ short stature‚ congenital heart disease‚ renal anomalies‚ and bleeding difficulties. Noonan syndrome affects a good percent of the world
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Performance The quest to achieve physical perfection is the ultimate task for a bodybuilder. This type of pressure on the athletes causes some to go to extreme measures to attain this sort of perfection. The use of anabolic steroids and other growth hormone supplements are typically what are turned to in order to reach the mass required to compete in the bodybuilding arena of today. This brings with it the possibility of negative side effects either ignored or possibly accepted as a territorial
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LAB NUMBER: ______ DATE: 6/12/13 TITLE: Response to Stimuli AIM: To discover how gravity can effect plant growth MATERIALS: kidney beans (3) glass cup tissue paper PROCEDURE: 1. Three kidney beans were placed on some tissue paper soaked in water. They were left for a day. 2. Several layers of tissue paper were placed along the inside of a glass and were soaked in water. The wet tissue stuck on the glass. 3. The germinating beans were gently placed between the glass and
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Performance Enhancing Drugs in Sports Kara Dunn Axia College of the University of Phoenix What are performance enhancing drugs? They are drugs that give an athletic advantage over those who do not use them. Performance enhancing drugs can be used to enlarge muscles or increase the blood’s oxygen carrying capacity. The use of substances to improve athletic performance dates back thousands of years. These types of drugs are becoming more common and are being used at a younger age. Today’s
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Chemical Eric: Dealing with the Disintegration of Central Control by[pic] Eric Ribbens Department of Biological Sciences at Western Illinois University Part I—At Fifteen… [pic] He was‚ his mother always said‚ the cutest little boy ever‚ and she had always adored him. So strong‚ so sturdy‚ confidently charging through life. At 10‚ he joined a Little League baseball team‚ and made the All-Star team in his first year. It wasn’t until quite some time later that she realized something was
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up of fat cells which have the capability to swell in size‚ these are inside the adipose tissue. Metabolic signals of hunger include Ghrelin and Pradar-Willi. Ghrelin has emerged as the first circulating hunger hormone. Ghrelin has numerous functions. It is termed the ‘hunger hormone’ because it stimulates appetite‚ increases food intake and promotes fat storage. When administered to humans‚ ghrelin increases food intake by up to 30% by circulating in the bloodstream at the hypothalamus‚ an area
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Knox Grammar School Year 10 Name Of Drug | Performance | Short Term Effects | Long Term Effects | Human Growth Hormone | Peptide hormone that stimulates growth‚ cell reproduction and regeneration in humans and other animals. | Increasingly masculine facial appearance and excessive sweating. It can also cause arthralgias‚ which is unusual bone growth. Since HGH affects your hormones‚ it can also cause impotence in men and menstrual problems in women. | HGH may raise your risk of osteoporosis
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