Question

Name a symbiotic life form that grows on the bark of a tre as large colour patches.

Answer 1

The symbiotic life forms that grow on the bark of a tree as large colour patches are called lichens. Lichens are the symbiotic associations between fungi and algae, wherein the algal partner provides organic food to the fungal partner which in turn provides protection and absorb nutrients. The colour of lichens is due to the pigments of algae.