Vertical distribution of different species occupying different levels in a biotic community is known as:

Options

(a) Stratification
(b) Zonation
(c) Pyramid
(d) Divergence

Correct Answer:

Stratification

Explanation:

Stratification is the occurrence of vertical zonation in the ecosystem & indicates the presence of favorable environmental conditions, for e.g., trees occupy top vertical strata or layer of a forest, shrubs the second. Herbs & grasses occupy the bottom layers. It is absent or poor where environmental conditions are unfavorable, e.g., desert ecosystems have very few trees & shrubs.