Question

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

• A. zonation
• B. pyramid
• C. divergence
• D. stratification

Answer 1

Answer: (D)

stratification

Answer 2

Stratification is the vertical distribution of different species occupying different levels in a biotic community. It is formation of vertical layers where vegetation is dense, i.e. 5-7 strata (layer) in tropical rain forests with emergent tall trees, canopy trees, shrub layer below tree layer, bottom layer of herbs and grass at ground level. Zonation is the horizontal categorization of biomass into zones based on their distribution or arrangement in habitat as determined by environmental factors, e.g. altitude, latitude, temperature, biotic factors, etc.

So, the correct option is (D): stratification.