The term ecosystem was used by</h2></div>

The pyramid biomass of the sea is?</h2></div>

Which is the most abundant constituent found in living organisms?

The excreta rich in phosphorus would be called as _________.</h2></div>

Crystalline rocks are natural source of which of the biogenetic element?</h2></div>

At what rate does decomposition occur when detritus is rich in lignin and chitin?

Which human activities have significantly influenced the carbon cycle?

Community dynamics is related to</h2></div>