In "Rivet popper hypothesis " Paul Ebrlich ,the rivets on the wings represents __________ in ecosystem.</h2…

What are the organisms that cannot manufacture their own food and obtain ready-made organic food from producers called?

<span>In a parasitic food chain, the pyramid of num</span><span>ber is</span></h2></div…

Which one of the following element is the critical limiting factor in the function of ecosphere because of its irretriev…

What percent of total global carbon does the atmosphere contain?

In which terms are the representation of the relationship between producers and consumers did?

<span>Which of the plain community have greatest biomass?<br> </span></h2></div>

The formation of a climax community from an abandoned farm land is a an example of<span><br> </span>&l…