The nervous system develops enough to permit reflex actions during which period of development?
A) pre-embryonic
B) embryonic, weeks 6-8
C) fetal, months 3-4
D) embryonic, weeks 2-3
E) embryonic, weeks 4-5

Question

Quizplus · Accepted Answer

At 6-8 weeks, the nervous system is developed well enough to permit reflex actions. During the pre-embryonic stage there is no nervous system. During the embryonic weeks 2-3 and weeks 3-4, the nervous system is not developed enough to permit the reflex actions.

The Nervous System Develops Enough to Permit Reflex Actions During