A) Streptococcus pneumoniae
B) Neisseria meningitidis
C) E. coli
D) Treponema pallidum
Correct Answer: C
Solution :
E.coli lives in large intestine of human. The cells of E. coli produce bacteriocins proteins that inhibit the growth of other bacteria such as pathogenic Salmonella and Shigella. Streptococcus pneumoniae a normal resident of nose and throat can cause pneumonia. Neisseria meningitidis resides in respiratory tract, can cause meningitis (a disease that inflames the coverage of brain and spinal cord). The bacteria Treponema pallidum causes syphilis disease of reproductive tract.
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