Multiple Choice
Questions 18-22 refer to the figure above illustrating the stages of animal reproduction and development.
-Primary tissue layers form by cell divisions, cell migrations, and rearrangements at this stage.
A) A
B) B
C) C
D) D
E) E
Correct Answer:

Verified
Correct Answer:
Verified
Q2: This stage occurs in the parents.<br>A)A<br>B)B<br>C)C<br>D)D<br>E)E
Q3: The gray crescent in frogs<br>A)stimulates zygote formation.<br>B)stimulates
Q5: The mesoderm is responsible for the formation
Q6: Which stage in reproduction and development occurs
Q7: The heart, muscles, bones, and blood develop
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
Q20: Which stage of development involves initial cellular
Q40: Cleavage produces the<br>A) zygote.<br>B) blastula.<br>C) gastrula.<br>D) puff.<br>E)