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प्रश्न
Which category of organisms forms the starting point of a food chain?
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उत्तर
Producers (green plants) form the starting point of a food chain.
संबंधित प्रश्न
List two main components of ecosystem?
List two important roles play in the environment by decomposers.
What are the various steps of food chain called?
At which trophic level a person is feeding when he is eating apple.
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 |
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms are (i) predators, and (ii) prey?
Match the terms given in column I with the terms given in column II and column III having the same meaning :
| Column I | Column II | Column III |
| (1) Secondary consumer | Herbivore | 1st trophic level |
| (2) Primary consume | Autotroph | 3rd trophic level |
| (3) Producer | Carnivore | 4th trophic level |
| (4) Tertiary consumer | Large carnivore | 2nd trophic level |
Write the importance of the food chain.
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
The process of accumulation of harmful chemical substances like pesticides, in the body of living organisms at each trophic level of a food chain is known as ______.
