Most primary productivity of pond is by</h2></div>

Why the pyramid of energy is always upright? Explain.</h2></div>

In upright pyramid of biomass, herbivores occupy the position</h2></div>

The biomass available for consumption to heterotrophs and the rate of formation of new organic matter by consumers are d…

Which of the following is not a group of man-made ecosystems ? </h2></div>

Nature of climax community depends upon</h2></div>

The last and stable community  is an area is called </h2></div>

Why is the rate of assimilation of energy at the herbivore level called secondary productivity? </h2><…