The heart and nervous system begin to form when the developing child is categorized as a(n)________.
A)fetus
B)zygote
C)embryo
D)blastocyst

Question

Quizplus · Accepted Answer

The formation of the heart and nervous system occur during the embryonic stage, which begins after the zygote has implanted in the uterine wall and lasts until the end of the eighth week of development. Therefore, the correct answer is C - embryo.

The Heart and Nervous System Begin to Form When the Developing