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प्रश्न
The ten per cent law is associated with
(a) transfer of energy from various trophic levels to decomposers in a food chain
(b) transfer of ATP energy into muscular energy
(c) transfer of chemical energy from one organism to another
(d) transfer of sun's energy to the organisms called producers.
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उत्तर
transfer of chemical energy from one organism to another
The 10 per cent law is associated with the transfer of chemical energy from one organism to another.
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संबंधित प्रश्न
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
What is biological magnification?
What are the various steps of food chain called?
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?
Write down a food chain in the sea.
Write down a food chain which ends with humans.
Construct a short foodchain, ending with man.
What is a food chain?
Organisms which synthesise carbohydrates from inorganic compounds by using radiant energy are called ______.
Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the ______.
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?
Fill in the following blank with suitable word :
Grass → ........... → Human
Will the levels of biological magnification be different at different levels of the ecosystem?
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
Primary consumers that eat plants are called _______.
Write the importance of the food chain.
Give some examples for Biodegradable and Non-biodegradable waste.
| S. No. | Biodegradable waste | Non-biodegradable waste |
| 1. | Food Waste | Plastic Bottles |
| 2. | ||
| 3. | ||
| 4. | ||
| 5. |
A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical entering the food chain will be maximum in ______.
