There is 78% nitrogen in atmosphere. But this cannot be taken in by the organisms. It needs to be fixed as nitrates and then utilised. This cycle is divided into four phases - nitrogen fixation, ammonification, nitrification, and denitrification (Fig. 12). Phase # 1. Nitrogen Fixation: Fixation of nitrogen takes place by atmospheric and biological agents. Other than this it [...]
Decomposers are the final step in the food chain and they reduce the organic matter into inorganic forms so that it is once again available to the producers. The upper layer of soil is the main site for the action of decomposers. In this way, decomposers provide energy and nutrients to the producers. The upper layer of soil consists of [...]
Here is a compilation of term papers on ‘Ecosystem’. Find paragraphs, long and short term papers on ‘Ecosystem’ especially written for school and college students. Term Paper on Ecosystem Term Paper Contents: Term Paper on the Introduction to Ecosystem Term Paper on the Components of Ecosystem Term Paper on the Kinds of Ecosystem Term Paper on the Ecological or Eltonian [...]