Question

which statement describes a parasite? a parasite is beneficial to its host. a parasite is harmed in its relationship with the host. a parasite only benefits when the host is alive. a parasite always kills its host and takes all the nutrients.

Explanation:

A parasite is an organism that lives on or in a host and benefits at the host's expense. It needs the host to be alive to continue getting nutrients and other resources. It doesn't always kill the host as it benefits from a living host over the long - term. It is not beneficial to the host and is not harmed in the relationship.

Answer:

A parasite only benefits when the host is alive.