Lichen is actually two organisms, a fungus and an algae. It is very sensitive to air pollution and dies in
heavily polluted air. So lichen can be an example of?

A. mutualism
B. bioindicator
C. symbiosis
D. A and B
E. A and C

Lichen is actually two organisms a fungus and an algae It is very sensitive to air pollution and dies in heavily polluted air So lichen can be an example of A m class=