Examlex
Humans depend on other organisms for all of the following requirements except:
Physiological Functions
The biological processes and activities carried out by the organs and systems of an organism to maintain life.
Preexisting Cells
The principle that cells are formed from the division of existing cells, as stated in the cell theory.
Powerful Enzymes
Biomolecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.
Worn-out Cell Components
Describes cellular components that have become dysfunctional or degraded after their normal lifespan or use within the cell, needing recycling or removal.
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