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प्रश्न
What are the various steps of food chain called?
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उत्तर
The various steps of a food chain are called trophic levels.
संबंधित प्रश्न
What will be the amount of energy available to the organisms of the 2nd trophic level of a food chain if the energy available at the first trophic level is 10,000 joules?
List two biotic components of a biosphere.
What will happen if we kill all the organisms in one trophic level?
What are planktons?
Define decomposers.
Write down a food chain with five links in it.
Construct a long food chain.
What would happen to the number of rabbits and grass plants if the number of foxes decreased?
Fill in the following blank with suitable word :
Pesticides enter the food chain at the ...........level
'If we excessively use pesticides to protect the crops from diseases, then it may cause long-term damage to mankind'. Justify this statement.
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
The harmful chemical which is accumulating in human beings through food chain is :
(a) benzenehexachloride
(b) dichlorodiphenyltrichloroethane
(c) chlorofluorocarbon
(d) abscisic acid
A food chain consists of fish, larvae, phytoplanktons and birds. The level of pesticides in water in which the fish, larvae and phytoplanktons live is quite high.
Which other organism you could write in place of bird in the above food chain?
Write the importance of the food chain.
Food chains are very important for the survival of most species.
Matter and energy are two fundamental inputs of an ecosystem. Movement of:
Observe the food web and answer the questions given below:
Why do all food chains start with plants?
______ are organisms that are able to produce their own organic food.
______ obtained energy from the chemical breakdown of dead organisms.
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
