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What is an example of a parasite?

  1. Fungi

  2. Scabies

  3. Virus

  4. Yeast

The correct answer is: Fungi

A parasite is an organism that lives on or inside another organism, obtaining food and shelter from the host organism while usually causing harm. Option A, fungi, is an example of a parasite because some fungi grow on living plants or animals, causing disease. Option B, Scabies, is incorrect because it is not an organism, it is a skin infection caused by tiny mites. Option C, virus, is incorrect because viruses are not classified as organisms and require a host cell to survive. Option D, yeast, is incorrect because yeast is a type of fungus that is usually beneficial and does not cause harm to its host.