Question

Viruses areA. parasites
B. obligate parasitesC. saprophytes
D. autotrophs

Answer 1

All the viruses are obligate parasites because they lack their own metabolic organs with which they could produce or synthesize proteins to help them keep alive.

These viruses have to depend upon the cell they attack or host cell to fulfill their needs.

So, the correct answer to this question is option B. Obligate Parasites.

These viruses cannot even replicate itself in absence of a host cell and needs to penetrate through a cell to gain proteins.