As cleavage divisions continue, the ball or layer hollows out to form the ____.
A) morula
B) zygote
C) blastomere
D) blastula
E) gastrula
Correct Answer:
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Q2: Yolk, when unequally distributed in the egg
Q3: Human development _.
A) is complete at birth
B)
Q4: Cleavage-stage cells are called _; they initially
Q5: Uterine contractions _.
A) often occur during the
Q6: Morphology refers to the _ of an
Q7: During mitotic cleavage. _.
A) no cell division
Q8: How does the amount of yolk relate
Q9: The final body form of an animal
Q10: Before zygotic genes become active, the stages
Q11: The information directing the development of the
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