1.

Populations or organisms of an ecosystem are connected to one another through a sequence of transfer of food and energy from one member to another. State the difference between the types of food chains found in different organisms.

Answer»

Two types of food chains that are observed in the ecosystem. These are grazing food chain and detritus food chain.
Differences between the two are:

Grazing Food ChainDetritus Food Chain
(1) It supports detritus food chain.It supports grazing food chain by providing inorganic nutrients.
(2) In this food chain, energy flows from plants to herbivores and then through carnivores.In this food chain in which energy flows from photosynthetic organisms through detritivores and decomposers.
(3) Sun’s energy is fixed by producers and is made available to consumers.Energy from the organic matter is used up by decomposers and detritivores. The nutrients are made available for reuse by the products.
(4) This begins with producers as the first trophic level.This begins with detritrivores and decomposers as the first trophic level.


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