1.

Name the type of food chains responsible for the flow of larger fraction of energy in an aquatic and a terrestrial ecosystem, respectively. Mention one difference between the two food chains.

Answer»

In aquatic system, detritus food chain and in terrestrial ecosystem, grazing food chain are responsible for flow of larger fraction of energy.

Types of food chains:

Grazing Food Chain (GFC) Detritus Food Chain (DFC)
(i) It starts with green plants called producers as first trophic level.It begins with dead organic matter and decomposers called saprophytes as first trophic level.
(ii) Energy for food chain comes from the Sun.Energy for the food chain comes from organic remain or detritus.


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