Pyramids of energy are </h2></div>

The phosphate by weathering of rocks firstly becomes available to which organisms?

Pyramid of numbers in a pond ecosystem is<span><br> </span></h2></div>

After a forest fire when above-ground plants are killed, which plant are the first to reappear?</h2></div>

Who proposed the concept of ecological pyramids?</h2></div>

In plant succession, the net productivity of climax community</h2></div>

What is an ecological pyramid? Compare the pyramids of energy, biomass and numbers.</h2></div>

As the succession proceeds number and types of _________ change.</h2></div>