Which of the Following Pathogens are Considered Nonliving

Question

Which of the following pathogens are considered nonliving?
A) protozoa
B) viruses
C) bacteria
D) All of the above are considered living.

Accepted Answer

Viruses are considered nonliving because they cannot replicate or carry out metabolic processes without a host cell. Protozoa and bacteria are both living organisms that can carry out independent metabolic functions.