Which of the following is true of spirochetes?

Which of the following is true of spirochetes?



A. They are all sexually transmitted
B. They have peritrichous arrangement of flagella
C. They are obligate intracellular organisms.
D. They are able to penetrate a host's tissues.
E. They are Gram-positive.


Answer: D. They are able to penetrate a host's tissues.


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