Embryonic stem cells are derived from the
A) outer cell mass of the morulA.
B) inner cell mass of the blastocyst.
C) middle layer of the zygote.
D) trophoblast.
Correct Answer:
Verified
Q5: Compared to adult hemoglobin, fetal hemoglobin
A)binds iron
Q6: Which of the following layers is considered
Q9: At the blastocyst stage, the cells are
Q11: The nuclei from the approaching sperm and
Q12: Muscle contractions of the uterine walls and
Q14: Fertilization usually occurs in the
A)ovary.
B)uterine tube.
C)uterus.
D)vagina.
Q14: An enzyme that sperm secretes that is
Q15: Human prenatal development takes _ weeks.
A)28
B)32
C)38
D)44
Q20: The hormones that maintain the uterine wall
Q35: The placental membrane is composed of
A)the embryonic
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