What is true about the evolution of animals?

In familial hypercholesterolemia individuals homozygous for the allele causing the disorder completely lack receptors on liver cells that take up cholesterol from the blood stream. heterozygous have one-half the number of receptors while individuals homozygous for the normal allele are phenotypically normal. this is an example of a.epistasis b.complete dominance c. incomplete dominance d. codominance

If the charge that enters each meter of the axon gets distributed uniformly along it. true or false

How has biodiversity on earth changed over time?