A mRNA containing introns is a
A. pre-mRNA.
B. ribosomal RNA (rRNA).
C. codon.
D. proenzyme.
E. gene.
A
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The term "retroperitoneal" may be used to describe the location of certain abdominal organs. This means that such organs are located
A. between the visceral and parietal layers of the peritoneum. B. posterior to the parietal peritoneum. C. in the peritoneal cavity. D. between folds of the parietal peritoneum. E. deep to the visceral peritoneum.
All of the following arteries supplying blood to scalp EXCEPT the
A. Supraorbital B. Occipital C. Superficial temporal D. Posterior auricular E. Infraorbital
Averaged over a few heartbeats, venous return is ________ cardiac output
A) much higher than B) somewhat higher than C) equal to D) somewhat lower than E) much lower than
When plasma glucose concentration increases, the secretion of insulin is ________ and the secretion of glucagon is ________. An increase in sympathetic activity will cause ________ secretion of insulin and ________ secretion of glucagon.
A. decreased; decreased; increased; unchanged B. increased; decreased; decreased; increased C. decreased; increased; increased; decreased D. increased; decreased; increased; decreased E. increased; increased; decreased; increased