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S10 CH 34 Part 1 The Biosphere
The Biosphere - Key Terms
13
Biology
10th Grade
01/26/2009

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Term
ecology
Definition
scientific study of the interactions among organisms and between organisms and their environment
Term
biotic factors
Definition
The living factors in the environment
Term
abiotic factors
Definition
The nonliving physical or chemical conditions in an environment
Term
population
Definition
A group of individual organisms of the same species living in a particular area at the same time
Term
community
Definition
all the organisms (populations) inhabiting a particular area without the abiotic factors.
Term
ecosystem
Definition
This includes the biotic and abiotic factors in an area.
Term
biosphere
Definition
The sum of all Earth's ecosystems.
Term
habitat
Definition
Specific environments in which organisms live. It is the organisms address.
Term
tropics
Definition
The region that lies between the Tropic of Cancer and the Tropic of Capricorn (23.5° N latitude and 23.5° S latitude) warmest temperature zones on Earth
Term
polar zones
Definition
The region north of the Arctic Circle and south of the Antarctic Circle.
Term
temperate zones
Definition
The latitudes between the tropics and polar zones in each hemisphere.
Term
current
Definition
A river-like flow pattern within a body of water
Term
microclimate
Definition
The climate in a specific area that varies from the surrounding climate region
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