Why do plants rely on photosynthesis and cellular respiration for energy but animals only rely on cellular respiration

In a relatively small iguana population the allelic frequency is tracked for three generations. webbing is a recessive allele; no webbing is the dominant allele. during one very rainy spring and summer, a flood washes all the iguana without webbed feet out to sea. by the fall, and three generations later, you have the gene pool seen here.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.