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प्रश्न
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
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उत्तर
Biomagnification is the process by which a harmful chemical enters the food chain and gets concentrated at each trophic level.
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संबंधित प्रश्न
Give reason to justify the following: The existence of decomposers is essential in a biosphere.
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
What are planktons?
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
Draw the food chain with four trophic levels.
Write down a food chain in the sea.
At which trophic level a person is feeding when he is eating apple.
Write one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place
Give one example of a simple food chain.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name two zooplanktons.
With the help of a food chain, explain how biological magnification of harmful chemicals can occur.
In the food chain given below, if the amount of energy available at fourth trophic level is 5 kJ, what was the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
(a) 500 kJ
(b) 50 kJ
(c) 5000 kJ
(d) 5 kJ
What would happen if an organism is removed from the food chain?
Food chains are very important for the survival of most species.
If 10,000 J solar energy falls on green plants in a terrestrial ecosystem, what percentage of solar energy will be converted into food energy?
Observe the food web and answer the questions given below:
Why do all food chains start with plants?
______ obtained energy from the chemical breakdown of dead organisms.
Each level in the food chain is called a ______ level.
Which statement is correct with respect to the food chain?
