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9 Life Functions
9 Necessary Life Functions BIO201
Term | Definition |
---|---|
Maintaining Boundaries | Internal environment remains distinct from the external environment |
Movement | Activities promoted by muscular system (run, walk, stand, sit, swim).,Movement of substances thru body systems (cardiovascular, digestive, urinary, etc.), Muscle contractibility |
Responsiveness | Ability to sense changes (stimuli) in environment and then respond to them |
Digestion | Breaking down of ingested foodstuff to simple molecules that can be absorbed into the blood |
Metabolism | "a state of change" broad term that includes all chemical reactions that occur within the body cells |
Excretion | Process of removing waste from the body |
Reproduction | Cellular- original cells divides, producing two identical daughter cell for use of growth/repair Organismal- reproducing a whole new organism (in humans reproducing a whole new person) |
Growth | Increase in size of a body part or organism as a whole or increasing the cells |
Homeostasis | Ability to maintain relatively stable internal conditions even though the outside world changes continuously |
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AngD1