environmental factors can influence natural selection because they can increase or decrease the number of…

environmental factors can influence natural selection because they can increase or decrease the number of chromosomes in an individual. the number of chromosomes in a population. the amount of genetic variation in an individual. the amount of genetic variation in a population.

environmental factors can influence natural selection because they can increase or decrease the number of chromosomes in an individual. the number of chromosomes in a population. the amount of genetic variation in an individual. the amount of genetic variation in a population.

Answer

Answer:

the amount of genetic variation in a population.

Brief Explanations:

Natural selection acts on population - level genetic variation influenced by environmental factors. Environmental changes can select for or against certain traits, altering the frequency of alleles in a population and thus the amount of genetic variation.