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Kipish [7]
3 years ago
7

In the late Devonian era, the seas began to recede and the land became more fertile. These environmental changes resulted in the

emergence of land-dwelling vertebrates. Some animals are better able to survive and reproduce under changing environmental conditions. This is an example of:A. evolutionB. mutationC. speciationD. natural selectionE. adaptation
Biology
1 answer:
ololo11 [35]3 years ago
3 0

Answer:

D. natural selection

Explanation:

<em>Natural selection is an evolutionary process in which organisms that are better adapted to changes in the environment survive and contribute more to the subsequent generations in terms of reproduction.</em>

The weak organisms gradually phase out of the population because they are weakly adapted to changes in the environment. Hence, they are not able to survive and or reproduce.

<u>Hence, processes whereby some animals are better able to survive and reproduce under changing environmental conditions ahead of others are natural selection processes.</u>

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The answer which is false is, gene flow leads to divergence and the formation of new species.

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For speciation to occur two populations must be prevented from interbreeding.

This means that populations must become isolated from on another through the geographical or biological barriers.

If populations remain isolated long enough, speciation will eventually occur because of changes accumulated in population due to natural selection.

What is gene flow?

Geographical isolation hampers gene flow because of spatial separation which in turn leads of reproductive isolation due to the inability of meeting gametes to leads.

It causes genetic drift due to the barrier of gene flow between them and parent species.

Certain alleles get fixed into population due to inbreeding in a smaller population while other gets eliminated, this leads to formation of new alleles and new gene pool, so-called progressive genetic divergence.

Finally there is the formation of new species when genetic variation are accumulated for several generations.

learn more about gene flow at

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1 year ago
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