The division of the zygote into two blastomeres occurs during
A) cleavage.
B) implantation.
C) placentation.
D) embryogenesis.
E) fertilization.
Correct Answer:
Verified
Q14: The period of gestation when the basic
Q15: The extraembryonic membrane that forms the urinary
Q16: A blastocyst is
A) an extraembryonic membrane that
Q17: The study of the development of the
Q18: The ectoderm forms which of the following?
A)
Q20: The first extraembryonic membrane to appear is
Q21: If the gonads fail to develop very
Q22: Which statement regarding placental circulation is true?
A)
Q23: During implantation,
A) the syncytial trophoblast erodes a
Q24: 
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