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Along Which Line of the Embryo Does the Primitive Streak

Question 21
Multiple Choice

Along which line of the embryo does the primitive streak form? A) cephalic -caudal B) right -left C) lateral -medial D) dorsal -ventral

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Q 22
Which of the following steps must occur first during the embryonic period? A) organogenesis B) gastrulation C) embryonic folding D) formation of the primitive streak
Q 23
What process starts at the embryonic period? A) fertilization B) formation of the blastula C) gastrulation D) implantation
Q 24
The rearrangement and migration of the cells of the bilaminar embryonic disc forms the trilaminar embryonic disc in a process called: A) gastrulation. B) formation of the blastula. C) organogenesis. D) fertilization.
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