Answer:
a. option :both have mammary glands is the correct answer right no
Answer:
cells
Explanation:
cells are responsible for the structures and functions
<em>zygote</em> is the diploid cell that results from the fertilization between an egg and sperm
<em>sperm</em> is the male reproductive cell that is responsible for a baby to born
<span>Any type of reproduction in living beings such as, animals, plants, protists bacteria and fungi. Both sexually and a-sexualy causes the most genetic variation.</span>