Which of the following elements have only the sedimentary type of nutrient cycle?</h2></div>

(i) What is primary productivity? Why does it vary in different types of ecosystems?<br> (ii) State the relation b…

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

If the energy produced at the level of producers is 1000 J, the energy available for the secondary consumers is</h2&g…

Given is an imaginary pyramid of numbers.<br> <span>Which of the following could be a possibility regarding …

Which of the owing statements regarding the maintenance of carbon cycle in the biosphere are correct?<br> a. Plant…

What is primary productivity? Why does it vary in different types of ecosystems?</h2></div>

The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystem…