A) lichen, moss, herbs, shrubs
B) moss, lichen, herbs, shrubs
C) lichen, moss, shrubs, herbs
D) shrubs, herbs, moss, lichen
Correct Answer: A
Solution :
The rocky and barren place is deficient in water and lacks any organic matter, having only minerals in disintegrated or weathered state, the pioneer to colonies. This primitive substration are crustose types of lichen. Crustose lichens \[\to \] Foliose lichens \[\to \] Moss \[\to \] Herbs\[\to \] Shrub \[\to \] Tree.
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