Food Web of Ecology - QS Study
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Previously we came to know that any food chain cannot remain scattered in nature. One food chain is linked with the other. When in a given eco-system, more than one food chain exists, the food chain becomes very complex and in this case the members of different types of food chain become interrelated. The well organized interrelated arrangement of more than one food chains formed by various species together is known as the food web.

Producer: Solar energy is the main source of energy in the ecosystem. the green plants, in presence of sunlight react with carbon dioxide and water and produce carbohydrate and oxygen as excess. In this way, the solar energy stored in chemical compounds or food. Those who accomplish this significant function are known as producers. Green plants are the main producers in eco-system. Producers are autotrophic. The producers do not depend upon other organisms for nutrition.