What are biogeochemical cycles?
How many tropic levels can a food chain have?
How different are the concepts of migration, emigration, and immigration
What are some examples of interspecif competition?
How does gross primary production(gpp) relate to photosynthesis?
How is carbon dioxide made by producers and consumers?
Explain the typical conformation of the age pyramids of underdeveloped countries?
Explain the difference between primary ecological succession and secondary ecological succession?
What is the main biological process that consumes carbon dioxide?
What are the phytoplankton and the zooplankton?
What is the relation between environmental resistance and the population growth according to the biotic potential curve?
What do you mean by eutrophication?
How is gpp related to photosysnthesis?
Under which form is nitrogen fixed by the living beings.
What are persistent organic pollutants (POPs?