By: Katelyn Sprinkle and Katelyn Byrd


interaction between two different organisms living in close physical association, typically to the advantage of both.

Mutualism, Commensalism, and Parasitism:

Mutualism is a relationship in which both organisms involved are benefited.

Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.

Parasitism is a relationship between two things in which one of them benefits from or lives off of the other.



Mutualism, Commensalism, and Parasitism

Mutualism Example: an oxpecker (a kind of bird) and the rhinoceros or zebra.

Commensalism Example: a whale and barnacles

Parasitism Example: Tape worms and fleas on humans.

Symbiosis Poster