Why do frequent mutations to hypervariable region of DNA not cause harm to humans?​

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

What is the period of cell life when it is conducting