The bacterial species most frequently associated with necrotizing fasciitis is:

A) Francisella tularensis.
B) Staphylococcus aureus.
C) Streptococcus pneumoniae.
D) Streptococcus pyogenes.


D) Streptococcus pyogenes.

Biology & Microbiology

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Fluid that collects in tissues is returned to the bloodstream by the

A. excretory system. B. digestive system. C. lymphatic system. D. vascular system. E. endocrine system.

Biology & Microbiology

Which structure contains the angiosperm egg?  

A.  style B.  endosperm C.  anther D.  embryo sac E.  stigma

Biology & Microbiology

A buildup of H2CO3 in the blood will lead to

a. alkalosis. b. calcium buildup. c. acidosis. d. hydroxide ion increase. e. HCO3 ? increase.

Biology & Microbiology

Refer to Figure 40-1. Which labeled portions of the skin would be affected by UV light?


a. 1 and 5
b. 1 and 15
c. 5 and 15
d. 5 and 14
e. 1, 14, 15

Biology & Microbiology