LIFE SCIENCE

Detailed explanation-1: -indicator species, organism-often a microorganism or a plant-that serves as a measure of the environmental conditions that exist in a given locale. For example, greasewood indicates saline soil; mosses often indicate acid soil.

Detailed explanation-2: -The term “indicator species” has three distinct meanings. They are a species, or group of species, that reflect the biotic or abiotic state of an environment; reveal evidence for, or the impacts of, environmental change; or indicate the diversity of other species, taxa, or entire communities within an area.

Detailed explanation-3: -An organism can serve as an indicator species if it has a wide distribution and high abundance level that makes it easy to observe and monitor.