The largest unit within which gene flow can readily occur is a

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

How does the nervous system affect the excretory system?

How do the evolutionary chart and the video support the claim that all living things are made up of cells?