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Chapter 1

Question:
What are the necessary life functions?
Answer:
1. Plasma membranes and skin; maintaining boundaries btw internal and external enviroment
2. Movement; of body parts (skeletal) and of substances (cardiac and smooth muscle.)
3. Responsiveness; the ability to sense and respond to stimuli
4. Digestion; break down food and absorb molecules in the blood.
5. Metabolism; all chemical reactions occur in body cells. (Catabolism, Anabolism.)
6. Excretion; the removal of wastes from metabolism and digestion. (Urea, carbon dioxides, feces.)
7. Reproduction; celluar growth/repair, offspring.
8. Growth; increase the size of a body part or organism.
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Last update by bonniehykes on 09/01/2010
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Chapter 1
Chapter 1
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Question: What are the necessary life functions?
Answer: 1. Plasma membranes and skin; maintaining boundaries btw internal and external enviroment2. Movement; of body parts (skeletal) and of substances (cardiac and smooth muscle.)3. Responsiveness; the ability to sense and respond to stimuli4. Digestion; break down food and absorb molecules in the blood.5. Metabolism; all chemical reactions occur in body cells. (Catabolism, Anabolism.)6. Excretion; the removal of wastes from metabolism and digestion. (Urea, carbon dioxides, feces.)7. Reproduction; celluar growth/repair, offspring.8. Growth; increase the size of a body part or organism.