Answer:
Bruh. What the dude said upctopcis correct ^^
Explanation:
Athletes tend to have lower resting heart rates<span> because training programs that build speed, fitness, muscle and endurance also train your heart muscles to pump a </span>higher<span> volume of blood with each heartbeat.</span>
The correct answer is option B, that is, Genetic drift greatly affects small populations, but large populations can recover.
Genetic drift in combination with mutation, natural selection, and migration is one of the most fundamental mechanisms of evolution. Genetic drift refers to a change in the relative frequency of distinct genotypes in a small populace, owing to the chance vanishing of specific genes as individuals do not reproduce or die.
It represents the genotype.
For example, Pp is heterozygous genotype, pp is recessive homozygous genotype, PP is dominant homozygous genotype. <span>But, combination and dominance between alleles can show different phenotypes. For example, complete dominance is when phenotype of the dominant allele is expressed in heterozygous. Codominance is when both alleles are expressed equally in heterozygous (phenotype is a combination of both).</span>
