A patient with orthostatic vital sign changes:

A) often requires atropine.
B) is severely hypotensive.
C) may faint upon standing.
D) has intra-abdominal bleeding.


Ans: C) may faint upon standing.

Biology & Microbiology

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The genetic code is translated in groups of ________ bases.

A. four B. three C. two D. five

Biology & Microbiology

Four of the five answers listed below are related by a common phase of mitosis. Select the exception

a. microtubules start to assemble outside the nucleus b. division of centromere c. disappearance of nucleolus d. disappearance of nuclear membrane e. shortening and condensation of a visible chromosome

Biology & Microbiology

At which level of protein structure are peptide bonds most important?

a. primary b. secondary c. tertiary d. quaternary e. globular

Biology & Microbiology

Cheetahs have been through a genetic bottleneck; evidence for this is that

A. little natural selection occurs in this species. B. they originally came from small areas of Africa. C. these cats are members of an endangered species. D. the body is long, thin, and graceful. E. there is very little genetic variability.

Biology & Microbiology