lilyskittles lilyskittles

15-03-2017
Biology

contestada

The gradual change in a population over time, so that the frequency of favorable traits increases, is called what?
A) mutation
B) evolution
C) extinction
D) speciation

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nathalyagramon nathalyagramon

15-03-2017

I think is (a) because that's the only one that changes gradually over time

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