Question

select the correct answer.
during the early stages of human development the body begins as a tiny group of cells called what?
a. an embryo
b. a fetus
c. an infant
d. an adolescent

Explanation:

During early human development, the initial tiny group of cells is called an embryo. Fetus is a later stage, infant is post-birth, and adolescent is teenage.

Answer:

A. An embryo