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sci test

STUDY
PLAY
biogeography
the study of where organisms live
continental drift
the process of continents moving
dispersal
the movement of organisms from one place to another
pangaea
one large landmass of continents 255 million years ago
physical barriers
barriers such as water, mountains, and deserts that can limit the movements of organisms
climate
the typical weather pattern in an area over a long period of time
competition
an organism competing for its resources
freshwater ecosystems
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