The large number of alveoli in lungs improve gas exchange by . increasing the surface area for diffusion decreasing the distance for diffusion changing the diffusion constant increasing the concentration difference

The rate at which molecules water and oxygen can enter a cell is determined by the-

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?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?