Once the embryonic mass has 12 or more cells, it is called a ________.
A) morula
B) gastrula
C) blastula
D) blastocyst
E) trophoblast
Correct Answer:
Verified
Q4: The inner cell mass of the blastocyst
A)
Q5: The single layer of cells that surrounds
Q6: Developmental events are calculated from
A) ovulation.
B) conception.
C)
Q7: If the zygote splits into two separate
Q8: An embryonic cell that contains the potential
Q10: The placenta and membranes surrounding the embryo
Q11: Germ layers form during the _ period,
Q12: The clinical age of the unborn child
Q13: If a woman ovulates two oocytes and
Q14: What event separates childhood from adolescence?
A) Onset
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