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Which of the following is an example of natural selection?

A

Two species of cichlid become less and less alike in the lake environment they both share.

B

A variety of dogs is bred for their ability to hunt animals that dwell in holes in the ground.

C

Peacocks are selected for mating by females due to their bright plumage.

D

The venom of a certain salamander species becoming more poisonous as predation by snakes increases.

E

Sharks and dolphins share similar body shapes and living environments.

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