Ecosystem, Biology

ECOSYSTEM

Plants, animals and human beings live in association with a wide variety of other plants and animals. These communities of organisms are not mere ad boc collections of individuals or populations but they represent a highly ordered dynamic and complex organisation. Such complex natural organisation with their living and non-living environments that controls them and from which the living organisms derive their sustenance are technically called as "ecosystem" or an "ecological system".

The interaction between living organisms and their environment is very much a two way process: organisms affect and are in turn affected by their surroundings. Professor Arthur Tansley, a British botanist, in 1935 proposed the term ecosystem and defined it as the "system resulting from the integration of all living and non-living factors of the environment". He regarded ecosystem as nQt only the organism complex but also the whole complex of physical factors forming the environment.

The concept of this interacting system has proved extremely valuable and the ecosystem is regarded as a basic unit for ecological studies.

Posted Date: 12/10/2012 5:02:31 AM | Location : United States







Related Discussions:- Ecosystem, Assignment Help, Ask Question on Ecosystem, Get Answer, Expert's Help, Ecosystem Discussions

Write discussion on Ecosystem
Your posts are moderated
Related Questions
What should be the minimal distance between the implants or an implant and a natural tooth. The minimal distance between the implant and the adjacent tooth should be 1.5 -2 mm

TYPES OF SPERM Mainly two types . (1) Flagellated Sperm - Generally all sperm are monoflagelated, but in todfish or opsonus sperm is biflagelated. (2) Non flagellated spe

Tr aditional Meat Products The rich heritage of India contributes to wide range of traditional foods and has a role to play in health foods. Indigenous meat products are uniqu

Q. Describe the Basic Mechanisms in Plaque Formation? In experimental models and human disease, the first morphologic phenomenon observed in plaque formation is adhesion of mon

Is a viral infection treated with the same kind of drug that treats bacterial infections? Antibacterial drugs, potent against a great variety of bacteria, are not effective aga

Echocardiography Utilizes principle of ultrasound for visualization of heart and great vessels. It uses sound in the frequency of 1-10 MHz. As the frequency of probe increase

Chlorophyll Chlorophyll is the porphyrin most widely used as a natural colourant. Its widespread occurrence in photosynthetic  tissue and its breakdown character have prompted

Define Requirements of Vitamins and Minerals during Surgery? Normal tissue stores of vitamins are required for the metabolism of carbohydrates and protein. Deficiency states li

Explain about the Effect of Nutrient and Drug Interaction? Medicines can treat and cure many health problems. Nevertheless, do you recall your doctor advising or recommending c

Pathogenic bacteria Heterotrophic bacteria could be divided into saprophytes and parasites. Saprophytes normally do not cause any disease and they survive on dead or decaying