A food web, is a network of more than one food chains, interlinked to each other. It is a graphical representation, showing the flow of energy in the environment and the different kinds of feeding habits, such as herbivory, carnivorous, scavenging, parasitism, etc.
All living organisms are broadly classified into two categories:
•Autotrophs, which synthesise their own food, with the help of energy from sunlight, in the presence of chlorophyll, utilising nutrients and water from soil.
•Heterotrophs, which depend on other organisms, living or dead, for their survival and maintenance of life.
Food web shows consumer-resource relationship, describing the interrelationship of different ecosystems and their roles in the environment.
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