Viruses are considered parasites because they cannot replicate without infecting a host cell, relying on the host's cellular machinery for reproduction. The other options are incorrect because viruses exhibit a wide variety of replication methods, structures, mechanisms for gene expression, and modes of entry into host cells.

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All Viruses ____

Question 51

Multiple Choice

All viruses ____.

A) are parasites of the host they infect
B) replicate in the same way
C) share the same structure
D) use the same mechanisms for gene expression
E) enter host cells in the same manner

Correct Answer: