Q2 of 50 Page 477

Write true or false for the following statements:

The flow of energy in a food chain is in both the directions.

False.

No, the energy flow in an ecosystem is always unidirectional. It always flow only from the Sun to the producer and then to consumers, not vie-versa.


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15

In the given figure, the various trophic levels are shown in the form of a pyramid. At which trophic level is maximum energy available and at which trophic level maximum number of organisms are present?

 1

Write true or false for the following statements:

The length and complexity of food chains remain mostly the same.

 3

Write true or false for the following statements:

The flow of organic matter in a food chain is unidirectional.

 4

Write true or false for the following statements:

15% can be taken as the average value for the amount of organic matter that is present at each step and reaches the next level of consumers.