collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of life
science that seeks to understand the living world
process by which organisms maintain a relatively stable internal environment
information in the environment that activates the nerves in a sense organ, a signal to which an organism responds
process by which cells from two different parents unite to produce the first cell of a new organism
process by which a single parent reproduces by itself
metric system (units)
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