Total amount of living material at various levels of a food chain is depicted by<span><br> </span><…

What happens to the nutrients which are never lost from the ecosystems?

What is the spectral range of solar radiation in that photosynthetic organisms are able to use in the process of photosy…

A progressive series of changes in plant and animal life in an area from initial colonisation is called</h2></d…

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

The species of plants that play a vital role in controlling the relative abundance of other species in a community are c…

Which of the following ecological food chain does not represent an erect pyramid of numbers?</h2></div>

Define a sere.</h2></div>