To classify animals and distinguish them
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The movement is called as peristalsis. This leads to the forward movements, which leads to pushing the food into the stomach and intestines, fro the esophagus, for digestion. It is a mechanical movement. These are the series of wave-like muscle contractions.
Answer:
I think it will be <u>gene flow</u>, but i'm not for sure
Explanation:
the gene pools can be combined in gene flow, reducing variation between the groups.
