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Evolution and Ecology
First exam
8
Biology
Undergraduate 1
09/15/2012

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Term
Evolution
Definition
Changes in organisms through time resulting in differences as well as similarities between organisms due to descent with modification
Term
Ecology
Definition
Scientific study of the interactions between organisms and their environment that determine the distribution and abundance of those organisms.
Term
Ecosystem
Definition
Environment with many different species and organisms all living together
Term
Population
Definition
A group of individuals of the same species that occupy a given area
Term
Community
Definition
All populations of different species living and interacting within an ecosystem 
Term
Landscape
Definition
An area of land (or water) composed of a patchwork of communities and ecosystems
Term
Biome
Definition
Broad scale regions dominated by similar types of ecosystems, such as tropical rain forest, grasslands, and deserts.
Term
Biosphere
Definition
The thin layer surrounding the Earth that supports all of life
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