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प्रश्न
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
पर्याय
(i) and (iii)
(iii) and (iv)
(ii) and (iii)
(i) and (iv)
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उत्तर
(ii) and (iii)
Explanation:
A food chain is a sequence of living organisms in a community or ecosystem, in which one organism is consumed the other.
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संबंधित प्रश्न
"Energy flow in a food chain is unidirectional" Justify this statement.
Which of the following constitute a food-chain?
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
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 .............
What is the role of decomposers in the ecosystem?
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
Why are there rarely more than five links (or five organisms) in a food chain?
Fill in the following blank with suitable word :
Plants → Antelope → ............
Explain how harmful chemicals enter our bodies.
Explain why, a food chain usually cannot have more than three or four steps.
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent
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 :
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(c) dog
(d) seed-eating bird
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
Primary consumers that eat plants are called _______.
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
Give one example of a food chain in an aquatic ecosystem?
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be ______.
