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:
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Q8: In the process of blastula formation,
A)the size
Q9: In December of 1998, Nkem Chukwu of
Q10: Which stage in reproduction and development occurs
Q11: The primary tissue layers are formed in
Q12: Organ formation is indicated by
A)A.
B)B.
C)C.
D)D.
E)E.
Q14: A zygote is formed at this stage.
A)A
B)B
C)C
D)D
E)E
Q15: Which of the following developmental events occurs
Q16: Which of the following is a single-layered,
Q16: Gastrulation produces
A) hollow balls of cells.
B) embryos
Q18: Organs gradually assume specialized functions at this
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