Lichens take up nutrients and pollutants from airborne dust, so many cannot survive where the level of air pollution is high. The U.S. Forest Service monitors lichens on tree trunks as part of its program to assess the health of forest communities. In this regard, lichens serve as a(n) ____.

Question

Quizplus · Accepted Answer

Lichens serve as indicator species because they are sensitive to air pollution and their presence or absence can indicate the level of air pollution in an area.

Lichens Take Up Nutrients and Pollutants from Airborne Dust, So