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Environmental Science
ch 7
5
Science
Undergraduate 1
11/24/2010

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Cards

Term
1. The total number of genetic characteristics of a specific biological population is called:
a) mutation
b) genetic diversity
c) competitive exclusion
d) ecological gradient
e) genetic drift
Definition
b
Term
2. Random changes in the frequencies of traits in a population are called:
a) mutation
b) genetic diversity
c) competitive exclusion
d) ecological gradient
e) genetic drift
Definition
e
Term
3. Principle that species with identical requirements cannot coexist in a habitat:
a) mutation
b) genetic diversity
c) competitive exclusion
d) ecological gradient
e) genetic drift
Definition
c
Term
Ecological gradient" refers to:
Definition
the variation in the number of species from the equator to the poles
Term
7. In which of the following situations is adaptive radiation most likely to occur:
a) where species evenness is high
b) where species diversity is high
c) in stable environments, with little change over time
d) in arid climates
e) where populations are isolated from the rest of the world
Definition
e
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