What term describes close interactions between two or more different species that live together?

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

Answer: (B)

The term that describes close interactions between two or more different species that live together is symbiosis. This term encompasses various types of relationships that can occur when different species coexist in a shared environment. Symbiotic relationships can be beneficial to one or both species involved and can take different forms.

In mutualism, for example, both species benefit from the relationship. Commensalism involves one species benefiting while the other is neither helped nor harmed, and competition refers to the struggle between species for the same resources, which can be detrimental to one or both parties. Therefore, symbiosis serves as the broader category that includes various forms of interactions, while the other terms specify more particular types of relationships within that category.