What is the process called that involves the movement of cells into new relative positions in an embryo and results in the establishment of three germ tissue layers?
A) determination
B) cleavage
C) fertilization
D) induction
E) gastrulation
Ans: E) gastrulation
Biology & Microbiology
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A) previous exposure to an antigen. B) active infection. C) latent disease. D) a healthy individual.
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What phenotypic effects does crowding have on the migratory locust? How are these changes
adaptive?
What will be an ideal response?
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The digestion of fats occurs mostly in the
a. stomach. b. pancreas. c. small intestine. d. lymph vascular system. e. liver
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The release of testosterone requires
a. GnRH. b. luteinizing hormone. c. Sertoli cells. d. GnRH and luteinizing hormone. e. GnRH, luteinizing hormone, and Sertoli cells.
Biology & Microbiology