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The process by which a living organism takes energy from its surroundings and uses it to sustain itself, develop, and grow
The process by which an organism uses the energy from the sun the produce its own food
The tendency of living organisms to control or regulate changes in their internal environment
The movement of moleclues from an area of high concentration to an area of low concentration
An organism that allows its internal concentration of salts to change in order to match the external concentration of salts in the surrounding water
An animal that mantains a controlled internal body temperature using its own heating and cooling mechanisms
Reproduction that involves the union of gametes from two organisms: a male and a female
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