Which of the following is true about natural selection?

ANatural selection usually causes a species to change suddenly.
BNatural selection does not cause a species to change.
CNatural selection is the only cause of changes in a species.
DNatural selection usually causes a species to change gradually. please i beg help me 18 points if you help

Question

11-04-2016
Biology

Answered

Which of the following is true about natural selection?

ANatural selection usually causes a species to change suddenly.
BNatural selection does not cause a species to change.
CNatural selection is the only cause of changes in a species.
DNatural selection usually causes a species to change gradually. please i beg help me 18 points if you help

Verified Answer :

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JcAlmighty JcAlmighty · Answer 1 · 2016-04-13T11:56:32-04:00

The answer is d. Natural selection usually causes a species to change gradually.

Natural selection is a one of the basic
mechanisms of evolution by which species adapt to their environment in order to
increase their chance of survival and reproduction. It is the change in the characteristics that lead to survival. In natural selection, genotype variations that will increase the chance of survival and reproduction of some organism are preserved and will be inherited. So, natural selection will "select" those genotypes that help survival causing gradual change of species.