Erythrogenic toxin, hyaluronidase, and hemolysins S and O are extracellular products of which of the following?
A. Enterococcus faecalis
B. Streptococcus pneumoniae
C. Streptococcus pyogenes
D. Streptococcus agalactiae
E. Viridans streptococci
Ans: C. Streptococcus pyogenes
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Which of the following organisms is the most common cause of urethritis?
A) Candida albicans B) Chlamydia trachomatis C) Neisseria gonorrhoeae D) Trichomonas vaginalis
____________________ is the recommended ART procedure performed on women with blocked oviducts
Fill in the blank(s) with correct word
What is the equivalent of the mammalian mouth and nose in the respiratory system of insects?
A. Alveoli B. Tracheoles C. Spiracles D. Epithelial tissue
High ____ concentrations in Lake Erie encouraged the growth of photosynthetic algae, which changed the
phytoplankton community.
a. sewage b. detergent c. coliform bacteria d. phosphorous e. dead fish