Biological levels of organization (smallest to biggest)

8 terms by c4itlinhill

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molecules

group of atoms, smallest unit of chemical compounds (1)

cells

smallest functional unit of life (2)

Groups of cells

tissues, organs, and organ systems (3)

organism

individual living thing (4)

population

group of organisms of one type that live in the same area (5)

community

populations that live together in a defined area (6)

ecosystem

community and its nonliving surrounding (7)

biosphere

the part of the earth that contains all ecosystems (8)

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