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9 Life Functions

9 Necessary Life Functions BIO201

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
Created by: AngD1