<em>Answer:</em>
<em>I Think the answer is option "C"</em>
<em>Explanation:</em>
<em> Some unicellular green algae, notably Chlorella, live within the cells of animals, imparting a green color to some sponges, hydras, and flatworms. The plant kingdom probably evolved from a green alga.</em>
The mineralized remains of an animal or plant. In short fossil.
When he has a child, he will either pass his X or his Y down. If he passes the X, he will have a daughter and if he passes his Y, he will have a son. If they had two X's with the color blind DNA, they'd be color blind too. These daughters are carriers, they have one of each type of X