Question

what does the term \ecosystem\ refer to?
living and nonliving entities in a specific area
only living organisms in a specific area
a single species in a specific area

Explanation:

An ecosystem encompasses both living (biotic) and non - living (abiotic) components in a particular area. Biotic factors include plants, animals, and microorganisms, while abiotic factors are things like sunlight, water, soil, and climate. The other options are too narrow in scope.

Answer:

living and nonliving entities in a specific area