Which of the following nerves is purely sensory?
A) vagus
B) trochlear
C) abducens
D) optic
E) hypoglossal
D
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Which control mechanism brings about segmentation in the terminal portion of the small intestine?
a. Gastroileal reflex b. Distention of the stomach c. Secretin action d. a and b e. None of the above
A secondary spermatocyte is ______ with _______ chromosomes
a. haploid, nonreplicated b. haploid, replicated c. diploid, nonreplicated d. diploid, replicated. e. none of the above
Freckles are a phenotype and the allele combination that causes a clotting disorder is a genotype.
Answer the following statement true (T) or false (F)
Pepsinogen is produced by ________ and is activated by ________, which is secreted by ________
A) parietal cells; carbonic anhydrase (CAH); chief cells B) chief cells; hydrochloric acid (HCl); parietal cells C) enteroendocrine cells; carbonic anhydrase (CAH); parietal cells D) chief cells; carbonic anhydrase (CAH); parietal cells E) parietal cells; hydrochloric acid (HCl); chief cells