Cycling of materials in ecosystem, Science

Cycling of materials in ecosystem:

Living organisms require four nutrients in relatively large amounts, these are carbon. oxygen, nitrogen and hydrogen. They also require phosphorus and sulphur. These elements are present in our environment in a fixed quantity,  therefore they must be  recycled  in order to sustain life. Also these'elements must move efficiently,  from the living  to nonliving components and vice versa. Let us understand this with the help of  an example. Plants take in  carbon as carbon dioxide to produce food. As the herbivores eat plants, carbon is on  to them, which  in  turn is passed on to carnivores,  and so on. Carbon is eventually returned to the nonliving pool  in  the ecosystem,  through the excretory processes of  the producers, the herbivores. the carnivores,  and also through the activity of the decomposers. Through such cyclic processe~these  nutrients are used over and over again by  the organisms. 

This aspect of  the ecosystem function is called the cycling of materials. In contrast to energy flow which Is  a one way process, mineral nutrients move more or less  in a  cyclic way. In  the following sub-sections,  you would study the cycles of nitrogen, carbon and water. This would give you an  idea of  the complex involvement of  the various living and nonliving components.  

Posted Date: 9/28/2012 4:56:11 AM | Location : United States

Related Discussions:- Cycling of materials in ecosystem, Assignment Help, Ask Question on Cycling of materials in ecosystem, Get Answer, Expert's Help, Cycling of materials in ecosystem Discussions

Write discussion on Cycling of materials in ecosystem
Your posts are moderated
Related Questions
I Want to study Zoology but I''m not sure which branch to study and how this all works. I want to study mammals, but how do I get there exactly? Also I was thinking about Vertebrat

Types of Diseases As we  have indicated above. there are diseases,that  a person is born with, for example, a baby may have a defective heart at the time of its birth. Then t

Explain the Autoregulation function of kidneys The kidneys possess the property of autoregulation. This means that the blood flow in the kidneys remain constant. It is independ

Explain the Transport of Carbon Dioxide in solution Carbon dioxide is amore soluble gas than oxygen.  Its amount in solution is proportional to the tension. At a tension of 40

why do we study science?

Food as fuel for the body machine: Body requires food for internal as well as external activities and for growth. Another way of  looking at this is that the body requires ener

descibe the factors which decidethe broad area of scientific activity?

discuss determinants of food security

does air is conductor