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The Gram-positive rod that is also acid-fast and is a human pathogen is A. Corynebacterium diptheria.B. Mycobacterium tuberculosis.C. Streptococcus pyogenes.D. Listeria monocytogenes.

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Answer:

Mycobacterium tuberculosis

Explanation:

  • Mycobacterium tuberculosis is a pathogenic bacteria that is responsible for causing tuberculosis.
  • It is a gram-positive bacteria that are acid-fast because of the impermeability of several dyes.
  • The bacteria are nonmotile and rod-shaped which can be 2-4 micrometers in length and 0.2-0.5 um in width.
  • The bacteria is an obligate anaerobe and a facultative intracellular parasite that usually infects the macrophages.

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