Answer:
Genetic drift
Explanation:
Genetic drift describes random fluctuations in the numbers of gene variants in a population. Genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time. These variations in the presence of alleles are measured as changes in allele frequencies.
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I believe the answer is true. Humans have a digestive track, which removes unwanted matter from the body.
Because the plants are blooming to early and they can freeze
