The M protein of group A streptococci inhibits:
A. antibody binding.
B. phagocytosis.
C. T-cell apoptosis.
D. lymphocyte proliferation.
Ans: B. phagocytosis.
Biology & Microbiology
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A) A B) B C) D D) Y E) Z
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The segmented worms of the phylum Annelida
a. have an open circulatory system. b. possess setae on each segment. c. are acoelomate. d. move by use of flagella. e. display radial symmetry.
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Fat absorbed by the small intestine enters the lymphatic system.
Answer the following statement true (T) or false (F)
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The use of which type of medication may lead to vaginal yeast infections?
a. antibiotics b. aspirin c. antihistamines d. pain relievers e. anti-hypertensives
Biology & Microbiology