Answer: All Viruses are obligate intracellular parasites that can only replicate inside a host cell.
Explanation:
Obligate intracellular parasites are parasite that cannot complete their life cycle or live outside a host cell . They become living and replicate in a host cell. Viruses are obligate intracellular parasites that reproduce and grow inside a host cell by using the intracellular resources in the host cell. Examples are human deficiency virus (HIV), AIDS virus, bacteriophage e.t.c.
