Question

what are parasites? ​

Answer 1

Answer:

an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense.

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Answer 2

Explanation:

A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites.

eg:lice