Which of the following would be considered components of the complement system? Select all correct choices
A. C-reactive protein (CRP)-mediated
opsonization
B. the lysis of pathogens via membrane
attack complexes (MACs)
C. histamine production by mast cells
A,B,C
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Menstrual flow results in the discharge of ____
a. the follicle b. the corpus luteum c. the lining of the endometrium d. surface cells from the vagina e. blood from vessels on the outer side of the uterus
Drift nets are fishing devices with an
a. average length of 40 to 50 meters and are 7 meters in depth. b. average length of 10 to 15 meters and are 5 meters in depth. c. average length of 50 to 70 meters and are 10 meters in depth. d. average length of over 100 meters and are 20 meters in depth.
A ________________ is a protective protein coat that surrounds the nucleic acid of the virus.
A. Capsid B. DNA C. Pathogen D. Epidemic
When reduced sulfur compounds associated with coal deposits are exposed to atmospheric oxygen, which kinds of organisms are responsible for conversion of these to sulfate?
A) oligochaete worms B) bacteria C) various plants used in reclamation of mining wastes D) saprophytic fungi E) all of the above