What is meant by food chain? "the no. Of tropic levels on a food chain is limited " give reason to justify this statement
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The food chain is a series of living things which arelinked to each other because each thing feeds on the one next to it in the series.
At each trophic level in a food chain, a large portion of the energy is utilized for the maintenance of organisms which occur at that trophic level and lost as heat. As a result of this, organisms in each trophic level pass on less and less energy to the next trophic levels, than they receive.The longer the food chain, the less is the energy available to the final member of food chain. Food chains generally consist of three or four steps (three or four organisms) because after that the energy available for the next organism will be so small that it will be insufficient to sustain the life of that organism.There are, however, some food chains containing five steps (or five organisms) but there are rarely more than five steps (or five organisms) in a food chain. We will now discuss the accumulation of harmful chemicals in food chains.
hope this may be helpful for u
At each trophic level in a food chain, a large portion of the energy is utilized for the maintenance of organisms which occur at that trophic level and lost as heat. As a result of this, organisms in each trophic level pass on less and less energy to the next trophic levels, than they receive.The longer the food chain, the less is the energy available to the final member of food chain. Food chains generally consist of three or four steps (three or four organisms) because after that the energy available for the next organism will be so small that it will be insufficient to sustain the life of that organism.There are, however, some food chains containing five steps (or five organisms) but there are rarely more than five steps (or five organisms) in a food chain. We will now discuss the accumulation of harmful chemicals in food chains.
hope this may be helpful for u
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Food chain : a sequential process in an ecosystem in which an organism is related to other organism for food , is called food chain e.g. food chain of a grassland is:
GRASS------> DEAR ---------> TIGER
the tropic levels of a food chain are limited because when energy is transferred from one trophic level to the next ,only 10% of the energy is transferred. Food chains generally contain 3-4 tropic levels because up to 3rd and 4th level sufficient energy is available .
If the food chains become still longer then energy reaching to the top level will be in traces and organisms of the more levels will fail to survive.
hope it helps u
have a splendid day:-)
GRASS------> DEAR ---------> TIGER
the tropic levels of a food chain are limited because when energy is transferred from one trophic level to the next ,only 10% of the energy is transferred. Food chains generally contain 3-4 tropic levels because up to 3rd and 4th level sufficient energy is available .
If the food chains become still longer then energy reaching to the top level will be in traces and organisms of the more levels will fail to survive.
hope it helps u
have a splendid day:-)
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