Question

1. which of the following best defines mutualism? both species benefit from their interaction. one species benefits, but the other is unaffected. one species uses another as a host and gives nothing in return. one species benefits while the other is harmed.

Explanation:

Mutualism is a symbiotic relationship in which both species involved gain benefits from their interaction. The other options describe different ecological relationships like commensalism (one - species benefits and the other is unaffected), parasitism (one species uses another as a host and gives nothing in return), and predation/parasitism (one species benefits while the other is harmed).

Answer:

Both species benefit from their interaction.