The earliest stage of development is called the _______ stage.
A) fetal
B) cleavage
C) gastrula
D) blastula
E) trophoblast
Correct Answer:
Verified
Q2: Which of the following is part of
Q3: Fertilization involves all of the following except
A)
Q4: Which of the following is true of
Q5: The gray crescent
A) is observable in the
Q6: When is the developing human most susceptible
Q8: Which of the following was a conclusion
Q9: In early cleavage, sea urchins undergo _
Q10: In organisms such as the chick, in
Q11: Which statement about gastrulation is true?
A) In
Q12: Which of the following does not occur
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