All the major organs and biological systems (such as the cardiovascular system, digestive system, and skeletal system) begin forming during the ____ period.
A) germinal
B) zygotic
C) fetal
D) embryonic

Question

Quizplus · Accepted Answer

The major organs and biological systems begin forming during the embryonic period, which takes place between the 3rd and 8th weeks after fertilization. During this time, the embryo is highly susceptible to environmental factors and any disruption can lead to congenital anomalies.

All the Major Organs and Biological Systems (Such as the Cardiovascular