Smiling muscle
a. levator labii superioris
b. zygomaticus

How is an environment able to support different varieties of organisms?

In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant

This rapid change in species that rarely leaves behind fossil evidence is referred to as