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8 terms

Levels of Organization of Living Things

This list matches my textbook, Prentic Hall's Biology.
STUDY
PLAY
molecules
Group of atoms; smallest unit of most chemical compounds
cell
Smallest functional unit of life
groups of cells
Tissues, organs, and organ systems
organism
Individual living thing
population
Group of organisms of one type that live in the same area.
community
Populations that live together in a defined area
ecosystem
Community and its non living surroundings
biosphere
The part of the Earth that contains all ecosystems.