Answer: B. absorbs water
Explanation: one of the main functions of the integumentary system is to absorb water.
The answer is <span>C) a mutation in his offspring </span>
<span>The germline mutation is heritable variation in the lineage
of germ cells. Germ cells are cells that give rise to the gametes, so a
mutation in germ cell will be seen in a sperm cell (man's gamete) but not in a body cell. If present in the sperm cell, after fertilization with an egg cell, the mutation will be present in formed zygote. So, man's offspring will have the mutation</span>
<em>Tiktaalik and Acanthostega are early tetrapods that do not have features unique to fish.</em>
Some and some not. Like cells bacteria can reproduce by itself infecting other cells but mammals and humans need to reproduce to keep life going. Bacteria spreads on its own while we must have sex to reproduce for our species to survive