Multiple choice

Which of the following correctly defines commensals?

  1. An organism that lives in the host's body and also helps the host

  2. An organism that lives in the host's body and harms the host.

  3. An organism that lives in the host's body and does not affect the host

  4. An organism that does not have any nucleus

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The organisms that live in a host's body and benefit from it, without harming or helping the host are called commensals.