When lichens grow on bare rock, they may eventually accumulate enough organic material around them to supply the foothold for later rooted vegetation. These early pioneering lichens can be said to do what for species arriving in a later successional stage?
A)inhibit
B)exclude
C)facilitate
D)tolerate
E)concentrate

Question

Quizplus · Accepted Answer

The lichens are facilitating the growth and establishment of later successional stage species by accumulating organic material and providing a foothold for rooted vegetation to grow.

When Lichens Grow on Bare Rock, They May Eventually Accumulate