In humans, from which extraembryonic membrane will the first blood cells arise?
A) yolk sac
B) chorion
C) amnion
D) allantois
Correct Answer:
Verified
Q7: After fertilization, a zygote rapidly divides to
Q8: What follows immediately after fertilization occurs?
A) acrosomal
Q9: The fusion of a sperm cell and
Q10: How is polyspermy prevented?
A) sperm migration
B) acrosomal
Q11: The head and tail regions, ventral and
Q14: Which of the following is NOT a
Q15: Which of the following is NOT a
Q16: When does the prenatal period begin?
A) gestation
B)
Q17: Which part of the embryo contributes to
Q17: Which of the following implants in, or
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