Vertical distribution of different species occupying different levels in a biotic community is known as
zonation
pyramid
divergence
stratification
(d)
Which one of the following is not a functional unit of an ecosystem?
A physiological xerophyte is
The region consisting of long and severe winters and growing season consisting of few months of summers constitutes
Green plants and green sulphur bacteria, prepare their organic food themselves with the help of sunlight, are known as
Terai forest is
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