relate to metabolism. Water‚ food‚ oxygen‚ heat and pressure. 7. Compare your own needs for survival with the requirements of organisms described in the chapter. The human body requires homeostasis or a stable internal environment protected from our external environment. 8. Explain the relationship between homeostasis and the internal environment. Our cells as part of organs and organ systems interact in ways to keep our internal
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The endocrine system is one of our body systems that plays an important role in living. It comprises of many glands exerting hormones in maintaining the body’s internal environment also known as homeostasis. The endocrine system plays an important role in homeostasis because it maintains growth and development‚ maturation‚ reproduction‚ human behavior‚ metabolism‚ sexual function and controls functions of the tissues. It is partnered with the nervous system since the hypothalamus along with the pineal
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The purpose of this lab was to investigate how size of seeds impact respiration rate. It was hypothesized that bigger seed will require more oxygen because more energy is needed to sustain the seed’s homeostasis. For this experiment 4 groups was set up with 0.5 mL worth of the following seeds: peas (1) ‚ black beans (1)‚ radish seeds‚ and glass beads (control). The black bean served as the biggest size‚ peas were medium‚ and radish seeds were the smallest. After setting up the microrespirometer and
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Urinary system Homeostasis Salt provides two elements that are essential for life and for good health - sodium and chloride ions. They are both elements that the body cannot manufacture itself so it must be supplied by food. Although salt is the most common dietary source for these essential elements‚ sodium also available from various foods that contain sodium naturally. Sodium is a mineral element that plays a critical role in body physiology. It controls the volume of fluid in the body and
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or just simple errors. 3) Make a graph of exercise and recovery heart rates from Activity 2. Provide a physiological explanation for changes in heart rate from rest to exercise‚ as well as during recovery. Incorporate fundamental concepts of homeostasis in your answer. The obvious physiological change that happens when you begin to exercise is the heart rate increases. The more energy and oxygen you use‚ the harder your heart works to pump the necessary nutrients and release the CO2. When you
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below it. The queen is much larger F Organisms Are Composed of Cells 1.3 Cells are the fundamental unit of living things 9 THE GENE THEORY: Genes Control the Traits of Organisms 1.4 Organisms have a genetic inheritance 10 THE THEORY OF HOMEOSTASIS: Organisms Are Homeostatic 1.5 Organisms regulate their internal environment 11 THE THEORY OF ECOSYSTEMS: Organisms Live in Ecosystems 1.6 The biosphere is divided into ecosystems 12 THE THEORY OF EVOLUTION: Organisms Are Related and
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major organs within each‚ and give a general function for each system. 4. Name the six life processes that distinguish living from non-living things. 5. Specify the five environmental needs required for life. 6. Define the term homeostasis‚ and explain how a homeostatic mechanism is regulated (i.e. negative feedback) by using an example we discussed in class. 7. Demonstrate what is meant by "anatomical position". 8. Define various directional terms (i.e. superior‚ inferior
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function as two main functions- excretion and osmoregulation. Excretion is the process by which waste products and other non- useful materials are eliminated from an organism. Osmoregulation is active regulation of the osmotic pressure to maintain the homeostasis of the organism’s water content. In other word‚ it keeps the organism’s fluid from becoming too diluted or too concentrated. Each of the kidneys is confined in a transparent membrane called the renal capsule. This protects the kidney again infections
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Experiment 1 Background Diffusion is a process‚ in relation to the spontaneous movement of molecules from an area of high concentration‚ to an area of low concentration down a concentration gradient. It is a type of passive transport method‚ that requires no cellular energy (ATP). This movement occurs‚ until a state of equilibrium has been established on both sides of the membrane. The diffusion of molecules happens at cellular level‚ through a cell membrane via the pores. The cell membrane
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ORGANISM‚ a living individual. Homeostasis With all of the activities going on in the organism‚ there must be guidelines and limits that the body must follow in order to preserve health. The body must maintain a STABLE INTERNAL ENVIRONMENT‚ even when external environment is changing. The term used to describe the body‟s ability to maintain these stable conditions is HOMEOSTASIS. ( Ex. thermostat and heater and temp regulation in the hypothalamus.) Homeostasis regulated by feedback: Compare
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