Author Question: By the end of the ____, the internal organs of the fetus begin limited functioning. A) first ... (Read 159 times)

Shelles · **on:** Jun 22, 2018

By the end of the ____, the internal organs of the fetus begin limited functioning.

A) first trimester
B) second trimester
C) third trimester
D) first month

Question 2

The multicellular descendant of the united sperm and ovum that implants on the wall of the uterus is known as the

A) zygote.
B) blastocyst.
C) fetus.
D) placenta.