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प्रश्न
Distinguish between food chain and food web.
उत्तर
| Food Chain | Food Web | |
| i. | The food chain is a definite sequence of interactions between producers, consumers, and decomposers (saprophytes). | The Food web is a network of food chains that are interconnected at various levels, forming an intricate web instead of a linear chain. |
| ii. |
If any of the intermediate organisms are removed from the chain it affects the whole food chain. |
In the food web, there is more than one alternative of food to most of the organisms; hence the removal of an organism does not affect the food web directly. |
| iii. |
Members of higher trophic levels feed on a single species of organism. |
A single organism can consume many sorts of organisms. |
| iv. |
In the food chain, energy flow may be easily quantified. |
In a food web, calculating energy flow is complicated. |
| v. |
Members of the same trophic level compete with one another. |
Members of the same as well as distinct trophic levels compete. |
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