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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
Which of the following are always at the second tropic level of food chains?
The first trophic level in a food chain is always a green plant. Why ?
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer?
Plants → Deer → Lion
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
What are the various steps of food chain called?
The decomposers in an ecosystem ______.
The sea water contains water beetles, tadpole, fish and weeds.
Write a food chain comprising all the given organisms.
Fill in the following blank with suitable word :
Plants → Antelope → ............
Explain how harmful chemicals enter our bodies.
An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and water beetles. The organism which gets the minimum energy through this food chain is :
(a) water beetles
(b) tadpoles
(c) weeds
(d) fish
Most of the water surface of a lake is covered with algae. This algae is part of the food chain which also includes small fish, bird, larvae and big fish. Which of the following will obtain the maximum energy?
(a) big fish
(b) bird
(c) larvae
(d) small fish
In addition to wheat plants, a crop field ecosystem has organisms such as snake, peacock, eagle and mice. If the wheat plants are sprayed with pesticides periodically, which of the following will have the minimum concentration of pesticides in the body?
(a) snake
(b) eagle
(c) mice
(d) peacock
A forest ecosystem having a lot of green plants has some foxes, lions and rabbits in it.
(a) Write a food chain comprising all the four organisms mentioned above.
(b) Name (i) one herbivore, and (ii) two carnivores, in this food chain.
(c) Name the link which is a predator as well as a prey.
(d) Name (i) second trophic level, and (ii) third trophic level.
(e) Which link of this food chain can feed on second trophic level as well as third trophic level, independently?
(f) If the sun provides 1000 J of energy to the plants, then how much energy will be transferred to fox through the food chain.
Arrange the following in a correct sequence and form a food chain
Rabbit → Carrot → Eagle → Snake
In a given food chain if the amount of energy at the fourth trophic level is 6 kJ, what will be the energy available at the producer level?
The food chain begins with the energy given by the ______.
In the following food chain, only 2J of energy was available to the peacocks. How much energy would have been present in Grass? Justify your answer.
GRASS → GRASS HOPPER → FROG → SNAKE → PEACOCK
