Darwin's Theory Answers

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.

A
natural selection
B
environmental factors
C
genetic variation
3

A permanent change in the DNA sequence of a gene

A
mutation
B
gene flow
C
genetic drift
D
natural selection
4

The random change in the frequency of an allele in a population

A
mutation
B
gene flow
C
genetic drift
D
natural selection
5

If having long fur helps a guinea pig survive, what would you expect to see change in the population as it evolves?

A
the F allele is more common
B
the F allele is less common
C
the f allele is more common
9

The transfer of genes from one population to another

A
mutation
B
gene flow
C
genetic drift
D
natural selection
10

Which of the following can typically decrease genetic variation?

A
toxins
B
predator-prey relationships
C
competition
D
new habitat
E
disasters
F
increased food supply
11

Drives the changes that occur in populations

A
mutation
B
gene flow
C
genetic drift
D
natural selection

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Darwin's Theory Answers — PT-GSE Environmental…