Multiple choice

Which of the following is not a parasite?

  1. Louse

  2. Mosquito

  3. Tick

  4. Housefly
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A parasite lives on or in a host and benefits at the host's expense. Louse, mosquitoes, and ticks are parasites. A housefly is a scavenger or vector, not a biological parasite.

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