Question

which of the following are commensal relationships? select all that apply. an organism of one species benefits and an organism of a different species also benefits. an organism of one species benefits and an organism of a different species is harmed. an organism of one species benefits and an organism of a different species is not significantly affected.

Explanation:

Commensalism is a symbiotic relationship where one organism benefits and the other is neither helped nor harmed significantly. The first option describes mutualism (both benefit), the second describes parasitism or predation (one benefits, one is harmed), and the third correctly describes commensalism.

Answer:

An organism of one species benefits and an organism of a different species is not significantly affected.