Commensalism is when _______


One species benefits and the other is harmed


Both species benefit


One species benefits and the other is not helped or harmed


Answer :

Answer:

Commensalism is a symbiotic relationship in which one species benefits while the other is not affected. Parasitism is a symbiotic relationship in which the parasitic species benefits while the host species is harmed.

Answer:

The last one.

Explanation:

Had this on a test once. I got it right