Rickettsiae and Chlamydiae are unusual in that they _____.
A)are sometimes Gram-negative and sometimes Gram-positive
B)have no cell walls
C)must live inside other living cells
D)are extremely large

Question

Quizplus · Accepted Answer

Rickettsiae and Chlamydiae are obligate intracellular parasites, which means that they must live inside other living cells to survive and reproduce.

Rickettsiae and Chlamydiae Are Unusual in That They _____