How are viruses different from bacteria?

a. viruses are killed by antibiotics.
b. viruses cannot replicate by themselves.
c. viruses contain only rna.
d. viruses are unicellular.

B. Viruses cannot replicate by themselves.

Explanation:

Viruses cannot replicate on their own, they need a host. Viruses do not have cells, they are only made up of nucleic acid and proteins. Viruses are defined as an infectious particle that replicates when it infects a host cell and uses its machinery to create more viruses.

tttccgugdfhhsvhsfghc

explanation:

yooptfrhtr

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.