Which of these are the biotic components of an ecosystem?

Biotic refers to the living organisms in an ecosystem. Green plants (producers), animals (consumers), and microorganisms (decomposers) together form the biotic component of an ecosystem. They interact among themselves and also with their abiotic (nonliving) environment like air, water, soil, etc.

Thus, the biotic components of an ecosystem include producers, consumers, and decomposers.