What does parasitism mean?

It basically means when a parasite is living inside of another organism that causes harm to the host.

Explanation:

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There is multiple definitions based of the dictionary but it generally mean "infestation by a parasite" or " the practice of living as a parasite in or on another organism".

Explanation:

Like going into or onto something, and taking over; Like how a parasite makes its way into already owned home, and taking over the host.

Hope this helps!

genetic variation will increase because of a new habitat and food source.

explanation: