Question

Short note for food chain about 250 words

Answer 1

Answer:

Explanation:In nature, we generally distinguish two general types of food chains: of razing food chain and detritus food chain. The Grazing food chain starts from the living green plants, goes to grazing herbivores (that feed on living plant materials with their predators), and on to carnivores (animal eaters).

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All the animals are detritus consumers. These detritivores are the key group of small animals, comprising only a few species but very large number of individuals. They ingest large amounts of the vascular plant detritus. These animals are in turn eaten by some minnows and small game fish etc. that is the small carnivores, which in turn serve as the main food for larger game fish and fish eating birds which are the large (top) carnivores.

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The mangroves considered generally as of less economic value make a substantial contribution to the food chain that supports the fisheries, an important economy in that region. Similarly detritus from sea grasses, salt marsh grasses and seaweeds support fisheries in many estuarine areas.

Thus the detritus food chain ends up in a manner similar to the grazing food chain (big fish eat little fish), but the way in which the two chains begin is quite different. In detritus chain, the detritus consumers, in contrast to grazing herbivores, are a mixed group in terms of trophic levels.

These include herbivores, omnivores and primary carnivores. As a group, the detritus feeders obtain some of their energy directly from plant material, most of it secondarily from

 

Ecosystems with such type of food chain are directly dependent on an influx of solar