During the course of successful prenatal development, a human organism begins as a a. embryo and finally develops into a zygote b. zygote and finally develops into an embryo c. embryo and finally develops into a fetus d. zygote and finally develops into a fetus e. fetus at finally develops into an embryo d. zygote and finally develops into a fetus

The correct answer is D. zygote and finally develops into a fetus

Explanation:

Zygote is formed by the fusion of male gametes and female gametes. It is considered as the first stage of development of a baby. Zygote is a unicellular structure which develops into an embryo which is a multicellular structure.

Then this embryo develops and is called a fetus at the starting of the 11th week of pregnancy. A developed fetus is the final stage of prenatal development.

Therefore during successful prenatal development, a human baby begins as a zygote and finally develops into a fetus. So the correct answer is D.

answer: 4

explanation: 8