Final answer:
The symbiotic relationship where both species benefit is called mutualism. Commensalism and parasitism are different types of symbiotic relationships where the outcomes differ for each species involved.
Step-by-step explanation:
The symbiotic relationship where both of the coexisting species benefit from the interaction is called mutualism. An example of mutualism would be the relationship between bees and flowers, where bees get nectar for food while pollinating the flowers, aiding in their reproduction. Commensalism is a relationship in which one species benefits while the other is not affected, such as cattle egrets eating insects stirred up by grazing cattle. In contrast, parasitism is a relationship where the parasite benefits at the host's expense, like ticks feeding on a mammal.