1. Write down an example about one form of cell communication (signaling) in the human/ animal/plant cells 2. Explain the pathway 3. Identify the ligands and Receptors 4. Identify the cellular response 5. List at least one disorder related to the pathway (signaling pathway)

a

explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

paper covers rock.

explanation:

rock only smashes scissors.