Allele frequencies in a gene pool may shift randomly and by chance. what is this random shift called?

a) genetic drift
b) directional selection
c) gene flow

c

explanation:

b - the respond is innate and varies over time.

good luck!

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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