Match List-I with List-II:
| List-I | List-II |
|---|---|
| A. Food chain | I. An organism that gets its energy by eating other organisms |
| B. Food web | II. The network of all the inter-related food chains in a community |
| C. Heterotroph | III. The sequence of organisms showing who eats whom in a community |
| D. Producer | IV. An organism that fixes the Sun’s radiant energy to make food from simple inorganic materials |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A-III, B-II, C-I, D-IV
Each term in List-I names a part or a link of the feeding relationships in a community.
(A) Food chain — this matches (III) The sequence of organisms showing who eats whom in a community. An animal feeds on a plant or on another animal and is in turn food for another.
(B) Food web — this matches (II) The network of all the inter-related food chains in a community. Natural interconnections between food chains make a food web.
(C) Heterotroph — this matches (I) An organism that gets its energy by eating other organisms. Consumers depend on producers, directly or indirectly, for food.
(D) Producer — this matches (IV) An organism that fixes the Sun’s radiant energy to make food from simple inorganic materials. Green plants are the producers.
So the correct match is A-III, B-II, C-I, D-IV.
NCERT Extract:
Energy Flow – “… We know that plants and photosynthetic bacteria (autotrophs), fix Sun’s radiant energy to make food from simple inorganic materials.”
Energy Flow – “You have read about the food chains and webs that exist in nature. Starting from the plants (or producers) food chains or rather webs are formed such that an animal feeds on a plant or on another animal and in turn is food for another. … All animals depend on plants (directly or indirectly) for their food needs. They are hence called consumers and also heterotrophs.”
Energy Flow – “… These natural interconnection of food chains make it a food web.”