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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
Which of the following are always at the second tropic level of food chains?
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
List two main components of ecosystem?
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
The following statement is true or false :
In biology, human beings are called producers.
Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?
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 |
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms in the food chain are herbivore, and carnivores?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
What could be X?
Some hunters are roaming in the plush green forest of Africa. They spot a deer and kill it. They decide to roast the deer there and then and eat it. When the hunters had just finished enjoying the feast of roasted deer, a lion attacks them. The lion kills one of the hunters and eats his flesh.
(a) write a food chain which provides food to lion in this case.
(b) Which animal (other than deer) the lion could look for food if he did not get the hunter as prey?
(c) Which other animal in the forest could have been in place of lion?
(d) How does the above food chain differ form the food chain such as : plants → goat → man?
If a harmful chemical enters a food chain comprising cat, mice and plants, which one of these organisms is likely to have the maximum concentration of the harmful chemical in its body?
Why are there rarely more than five links (or five organisms) in a food chain?
Which common pesticide has accumulated in human body in considerable amounts?
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.
Write the food chain comprising all the organisms mentioned above.
Observe the food web and answer the questions given below:
Why do all food chains start with plants?
The sequence of who eats whom in an ecosystem is called as ______.
Animals that eat both plants and animals are called as Carnivores.
In the following food chain, vertical arrows indicate the energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which one of the three vertical arrows (A, C and E) and which one of the two horizontal arrows (B and D) will represent more energy transfer? Give reason for your answer.
A food chain in a forest ecosystem
