Prenatal development takes an average of 38 weeks,which are divided into how many stages?
A) four
B) six
C) three
D) ten
Correct Answer:
Verified
Q1: The period of the embryo goes from
Q3: Near the centre of a zygote is
Q4: Most of the body structures and internal
Q8: A fertilized egg is called a(n)
A) amnion.
B)
Q10: Amy doesn't know it yet, but she
Q11: Implantation of the fertilized egg into the
Q14: The period from conception to birth normally
Q16: A zygote is
A) a structure through which
Q17: The zygote implants into the
A) uterine wall.
B)
Q20: The process of a zygote burrowing into
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