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tatiyna
3 years ago
7

 Which one of the following criteria is necessary for natural selection to occur? 

Biology
2 answers:
Readme [11.4K]3 years ago
7 0
D. A struggle for existence is apparent.

If a struggle for existence is apparent, natural selection occurs because all of the weak/unfit/unadapted ones die.
taurus [48]3 years ago
5 0
A struggle for existence is apparent, so only the strongest survive.

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