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 is the amount of genetic variation in a population Natural selection gets impacted by environmental factors.

The environmental factors increase or decrease the quantum of genetic variation in a population. Genetic diversity increase due to sudden and permanent change in the gene or DNA. This change is called mutation. Decrease in genetic diversity may occur when a specific allele reduces the chances of individual with that trait to reproduce. Individual with decreased genetic variation often dies before producing offspring through reproduction.

the eggs of the insects should be the first thing collected at the scene.

false