Which one of these statements is true about reproduction in humans? a. one sperm will fertilize one egg
b. all the eggs produced are fertilized
c. males and females are born with a supply of reproductive cells
d. females will produce a mature egg through out their lives ​

A

Explanation:

The egg and sperm each contain one set of chromosomes. To ensure that no more than one sperm fertilizes the egg, once the acrosomal reactions take place at one location of the egg membrane, the egg releases proteins in other locations to prevent other sperm from fusing with the egg.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands