The major etiologic agent of bacterial endocarditis in the United States is:
a. E. faecalis.
b. S. pneumoniae.
c. S. pyogenes.
d. Viridans streptococci.
D
Viridans streptococci is the etiologic agent in the majority of cases of bacterial endocarditis in the United States.
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Which of the following is known to activate the genital herpes virus?
A. Stress B. Sex hormones C. Sunlight D. All of the choices are correct.
The five-toed limb of stem reptiles was modified into a limb suitable for digging. This is an example of ____
a. convergent evolution b. morphological divergence c. analogous evolution d. morphological convergence e. distal modification
The __________ can be considered a sorting, processing and packaging center
a. centriole b. centrosome c. Golgi complex d. vacuole e. cytoskeleton
What are the three lines of evidence that challenge fundamental aspects of many set-point theories of body-weight regulation?
What will be an ideal response?