Food Chain
In our ecosystem the green plants produced some energy containing molecule as a source of food . This food is eaten by herbivorous animal like cattle , deer , goat etc i .e they obtain energy directly from the plants .
The energy is transferred from one organism to another and this sequence is basically called as Food Chain.
Types - There are three types of food chain -
- Predator Food Chain - As the name suggest in this type of food chain the predator predates its food . The herbivorous is eaten by secondary consumer and secondary consumer is eaten by tertiary consumer this is known as Predator Food Chain . You can understand by the example given here . Lets say a Grasshopper eat the plants and then grasshopper is eaten by mice . In this case Mice, is predator bcause it preys on Grasshopper .
- Parasitic Food Chain - In this type of food chain the energy is passes from larger to smaller organisms . For example the energy is passes from host to parasite . For example , a malaria parasite that enters the human's blood after the bite of an mosquito and multplies itself in the body and cause the disease Malaria .
- Saprophytic Food Chain - Saprophytes are those organism which eat dead and decay organisms . There is transfer of energy from dead and decay to micro organisms . For example , in this picture , when a hawk dies then it is eaten by fungi .
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