Question

definition
a tiny, nonliving particle that invades and then reproduces inside a living cell.
choose an answer
1 parasite
2 bacteria
3 virus
4 bacterium

Explanation:

Viruses are non - living particles that invade and reproduce inside living cells. Parasites are living organisms that live on or in a host. Bacteria and bacterium (singular of bacteria) are single - celled living organisms.

Answer:

1. Virus