When lichens grow on bare rock, they may eventually accumulate enough organic material around them to supply the foothold for lated rooted begetation. these early pioneering lichens can be said to do what to the later arrivals? a) tolerateb) inhibitc) facilitated) excludee) concentrate

Answer is C. Facilitate.

Explanation:

Lichen was formed through a mutual relationship between a cyanobacteria or algae and fungi. But the properties of the combined lichen is different from its components organisms.

The algae photosynthesis for food production while the fungi provide attachment and others to the relationship.

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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