How long does the pre-embryonic period last?
A) 2 days
B) 2 weeks
C) 2 months
D) 8 weeks
E) 10 weeks

Name: How long does the pre-embryonic period last? A) 2 days B) 2 weeks C) 2 months D) 8 weeks E) 10 weeks
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Question

Quizplus · Accepted Answer

The pre-embryonic period lasts for approximately two weeks after fertilization, during which time the zygote undergoes several rounds of cell division and forms a hollow ball of cells called a blastocyst. After this period, the embryonic period begins.

How Long Does the Pre-Embryonic Period Last