What is primary productivity? Give brief description of factors that affect primary productivity. </h2>&l…

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

State whether the following statements are true or false.<span><br> Clements called the first stage…

<span>Biogeochemical cycles are of</span></h2></div>

What is the amount of nutrients present in the soil at any given time called?

What amount of carbon is fixed in the biosphere through photosynthesis annually?

Which one is not the dynamic aspect of an ecosystem?</h2></div>

Sometimes due to biotic/abiotic factor the climax remain in a particular seral stage (pre climax) without reaching clima…