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The movement of molecules from an area of high concentration to an area of low concentration (42)
The tendency of living organisms to control or regulate changes in their internal environment (41)
An animal that maintains a controlled internal body temperature using its own heating and cooling mechanisms (46)
The process by which a living organism takes energy from it surroundings and uses it to sustain itself, develop and grow (33)
An organism that allows its internal concentration of salts to change in order to match the external concentration of salts in the surrounding water (44)
The process by which an organism uses the energy from the sun to produce its own food (34)
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