aging effects all of the body's cell; and therefore, the basic building blocks of tissues. as your body ages, many tissues

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?