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प्रश्न
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उत्तर
According to the given information, 500J of energy is available to the rats. Then, according to the 10% law, the amount of energy available to the snakes is 50J, and the amount of energy available to the hawks is 5J.
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संबंधित प्रश्न
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part she saw a water beetle holding a tadpole in its jaws.
(a) Construct a food chain for the pond.
(b) How many links are there in this chain?
The sea water contains water beetles, tadpole, fish and weeds.
Which organism is a secondary consumer?
Why are there rarely more than five links (or five organisms) in a food chain?
Fill in the following blank with suitable word :
Grass → ........... → Human
Explain why, a food chain usually cannot have more than three or four steps.
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent
Give one example of a food chain in an aquatic ecosystem?
Define – Heterotrophs.
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
