The developing organism becomes capable of physical movement during the
A) germinal stage.
B) fetal stage.
C) embryonic stage.
D) postnatal stage.

Question

Quizplus · Accepted Answer

During the fetal stage, which begins at 9 weeks after conception and lasts until birth, physical movements become noticeable as the fetus gains muscle strength and control. The germinal stage occurs during the first 2 weeks after conception, when the zygote rapidly divides and becomes implanted in the wall of the uterus. The embryonic stage lasts from the end of the germinal stage until the end of the eighth week after conception, during which time the major organ systems develop. The postnatal stage refers to the time period after birth.

The Developing Organism Becomes Capable of Physical Movement During the