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प्रश्न
Name and state the law given by Lindeman which tells us how much energy entering a particular trophic level of organisms is available for trasnsfer to the next higher trophic level.
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उत्तर
The law given by Lindeman is called the 10 per cent law. It states that only 10 per cent of the energy entering a particular trophic level of organisms is available for transfer to the next trophic level.
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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?
Which of the following are always at the second tropic level of food chains?
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
The first trophic level in a food chain is always a green plant. Why ?
List two main components of ecosystem?
What are the various steps of food chain called?
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
Write down a food chain which ends with humans.
Write a common food chain of a pond ecosystem having four links.
What is a food chain?
Which of the following represents a possible food chain found in a pond :
| Primary producers |
Primary consumers | Secondary consumers |
| (a) green algae | fish | mosquito larvae |
| (b) fish | green algae | mosquito larvae |
| (c) mosquito larvae | fish | green algae |
| (d) green algae | mosquito larvae | fish |
Which of the following group of organisms are not constituents of a food chain?
- grass, lion, rabbit, wolf
- plankton, man, fish, grasshopper
- wolf, grass, snake, tiger
- frog, snake, eagle, grass, grasshopper
The following is a food chain that ends with human :
Do you think that the food chain given in this question can really be regarded as a food chain? Explain your answer.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name one phytoplankton.
The following statement is true or false :
Only 10 per cent of the light energy given by the sun is available for transfer at each higher trophic level in a food chain.
What is ten per cent law? Explain with an example.
Which common pesticide has accumulated in human body in considerable amounts?
How much energy will be available to hawks in the food chain comprising hawk, snake, paddy and mice, if 10,000 J of energy is available to paddy from the sun?
Which of the following gets the minimum energy through the food chain in an ecosystem?
(a) carnivore
(b) large carnivore
(c) producer
(d) herbivore
Animals that eat both plants and animals are called as Carnivores.
