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प्रश्न
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Food web
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उत्तर
The food web is the network of many food chains, like the one given in the following picture.
Food web: Food webs are formed by intricate feeding relationships. Food chains are not linear and straight in any ecosystem found in nature. However, these are quite intricate.
A predator consumes prey, but it also runs the risk of becoming prey for another predator. For instance, frogs can eat a wide range of insects, but snake feeds on frogs.
Frogs and insects can both be consumed by the same bird. In any ecosystem, complex food webs are formed by the interactions between the different biological components.
संबंधित प्रश्न
Explain the concept of primary productivity.
Mention if the following statement is true or false
Snakes are primary consumers
What is an energy pyramid?
The two components of an ecosystem are
What is the dissolved salt concentration (in ppm) of the sea?
Match the Columns.
| Column I | Column II | ||
| i. | Hibernation | a. | Birds in winter |
| ii. | Aestivation | b. | Polar bear in winter |
| iii. | Migration | c. | Some snails and fish in summer |
Changes in our surroundings that make us respond to them are called ______.
Suggest one word for the following statement/definition.
Organisms which depend on the producers either directly or indirectly for food
Indicate the flow of energy in an ecosystem. Why is it unidirectional? Justify.
Distinguish between the following:
Hibernation and Aestivation
