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.
Answer:
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Explanation:
Well the arteries carry oxygen and your nutrients away from you heart, to ypur bodies tissues. The viens take oxygen poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen rich blood away from the heart to all the bodies tissues.