Which term describes a relationship where both organisms benefit?

• A. Commensalism
• B. Parasitism
• C. Mutualism
• D. Competition

Answer: (C)

The term that describes a relationship where both organisms benefit is mutualism. In mutualistic relationships, both species involved provide resources or services to each other, which in turn enhances their chances of survival, reproduction, or overall well-being. An example of mutualism can be seen in the relationship between bees and flowering plants; bees get food in the form of nectar while helping to pollinate the plants, facilitating their reproduction.

Commensalism refers to a relationship where one organism benefits while the other is neither helped nor harmed, while parasitism involves one organism benefiting at the expense of another. Competition refers to the interaction between organisms competing for the same resources, which does not result in a mutual benefit. Thus, mutualism distinctly characterizes the beneficial interaction for both parties involved.