Question

16. The first and shortest stage of prenatal development is _______________, where the the zygote begins to grow in complexity during the first two weeks of conception. The _________________ stage lasts from 2 - 8 weeks following fertilization, when major organs and basic anatomy begin to develop. The ___________________ stage lasts from 8 weeks until birth and involved the differentiation of major organs.

Answer 1

Answer:

germinal stage

embryonic

fetal

Explanation:

Once fertilization has occurred, that is, the union of sex cells (sperm and ovum) begins to form a new being. A pregnancy lasts approximately 38 weeks and this is divided into three phases: germ stage, embryonic stage and fetal stage.