Lichen is a pioneer in which succession?</h2></div>

What is the number of trophic levels equal to?

Last stabilised community in a plant succession is known as</h2></div>

Well known ecosystem ecologist is<span><br> </span></h2></div>

In the phosphorus cycle, phosphate becomes available by weathering of rocks first to _____________.<br> </h2&gt…

Which one of the following regarding ecological pyramid is not correct?<br> </h2></div>

In a pyramid _________ constitute the largest number of organisms.</h2></div>

Which of the following phenomenon is responsible for the initiation of a food chain?