The ability of a muscle to contract and relax is dependent on the flow of what substance in and out of the muscle cell?

Which of the following is not a product of the second stage of glycosis

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

What do we call an individual that has inherited two identical alleles for the same trait? a.homozygous b.heterozygous c.monozzygous