Which factor plays a role in determining blood pressure?
a. Arteriole dilation
b. Total blood volume
c. All of these choices
d. Amount of blood the ventricle pumps out
e. Cardiac output
c
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The organism most frequently associated with various infections in humans is:
a. Bordetella. b. Oligella. c. Achromobacter. d. Roseomonas.
The perception of a certain pitch of sound depends partly on
A. which bones of the middle ear are moved. B. the amplitude of the sound waves. C. whether it is the round window or oval window that vibrates. D. which hair cells of the cochlea are stimulated. E. where particles settle in the semicircular canals.
If a virus is latent, it
A. has not entered a lysogenic cycle. B. is not actively replicating. C. cannot be a retrovirus. D. is easy to develop immunity against it. E. is gaining a new envelope via "budding."
Listeria monocytogenes is a species of rod-shaped bacteria. How would L. monocytogenes be affected if its actin-like cytoskeletal proteins were no longer functional?
A. It will be able to secrete mucilage and aggregate as part of a biofilm. B. It will no longer be able to undergo binary fission for reproduction. C. It will become a spirochaete. D. It will be able to store more nutrients. E. It will be less efficient at exchanging materials with its environment.