A living thing that provides a source of energy for a virus or an organism.

Organisms that live on or in a host and cause harm to the host.

A small, nonliving particle that invades and then reproduces inside a living cell.

Inhibiting the growth of viruses.

Illnesses that pass from one organism to another.

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Biology Vocabulary

7TH GRADE Biology; Viruses vocabulary

Term	Definition
Host	A living thing that provides a source of energy for a virus or an organism.
Parasite	Organisms that live on or in a host and cause harm to the host.
Virus	A small, nonliving particle that invades and then reproduces inside a living cell.
Antiviral	Inhibiting the growth of viruses.
Infectious disease	Illnesses that pass from one organism to another.