Decomposers, the Nitrogen Cycle and Carrying Capacity

Decomposers are organisms that feed on waste from other organisms, or on dead organisms. They recycle materials such as carbon and nitrgoen.

Nitrogen Cycle 

All organisms need nitrogen, as it is a component of essential compounds including amino acids, proteins, nucleotides and nucleic acids (DNA and RNA) Nitrogen in the atmospher (dinitrogen (N2) is inert (unreactive) and few organisms can gain their nitrogen from this source.  

Some bacteria, such Rhizobium are able to fix nitrogen from the air by reducing it in anaerobic conditions because of leghaemoglobin…