Multiple Choice
In frogs, the gray crescent appears
A) after the egg matures.
B) after fertilization.
C) during blastula formation.
D) following gastrulation.
E) as a result of tissue specialization.
Correct Answer:

Verified
Correct Answer:
Verified
Q7: Gastrulation produces<br>A) hollow balls of cells.<br>B) embryos
Q8: Which of the following events occurs over
Q9: In the process of blastula formation,<br>A)the size
Q12: Which of the following developmental events occurs
Q14: Which of the following is a single-layered,
Q15: A zygote is formed at this stage.<br>A)A<br>B)B<br>C)C<br>D)D<br>E)E
Q16: Organ formation is indicated by<br>A)A.<br>B)B.<br>C)C.<br>D)D.<br>E)E.
Q17: A zygote forms<br>A)as soon as a sperm
Q20: Which stage of development involves initial cellular
Q68: Which embryonic tissue is incorrectly associated with