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प्रश्न
Fill in the following blank with suitable word :
A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............
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उत्तर
A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a food chain.
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संबंधित प्रश्न
State with reason any two possible consequences of elimination of decomposers from the Earth.
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
Why are green plants called producers?
We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.
Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?
A food chain represents a unidirectional flow of X. What is X?
Write down a food chain in the sea.
At which trophic level a person is feeding when he is eating roasted chicken.
At which trophic level a person is feeding when he is eating bread.
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
Organisms which synthesise carbohydrates from inorganic compounds by using radiant energy are called ______.
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :
(a) cat
(b) plants
(c) dog
(d) seed-eating bird
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.
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
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?
Which of the following is a logical sequence of food chain?
The sequence of who eats whom in an ecosystem is called as ______.
Analogy:
Primary Consumer: Goat, Cow:: Secondary Consumer: ______.
DDT was sprayed in a lake to regulate breeding of mosquitoes. How would it affect the trophic levels in the following food chain associated with a lake? Justify your answer.
