What divides the human heart into a left and right side?
a. ventricles
b. aorta
c. septum
d. atria

Amouse that is homozygous for the dominant trait has the genotype . it has . a mouse that is homozygous for the recessive trait has the genotype . it has . image of fur color of mice

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow