Cell division and differentiation first begins during the germinal stage of prenatal development.
<u>Explanation:</u>
The development of the zygote into a full developed fetus occurs in three most prominent stages they are the germinal stage that occurs from the conception to the second week.
The embryonic stage that is from second week to the eighth week and the fetal stage that is from the eighth week till the birth of the baby. Each stage has its characteristic development that has to be completed.
Maybe you should spell please correctly first
Answer:
hormones
Explanation:
hormones usually cause puberty. Causing the body to grow.
If there is only 1, x means female and y means male. If there are 3 I'd say 3 x's means female and 2 y's means male. And three x's is female and 3 y's is male. Hope that helps
