Question

With reference to food chain in ecosystems, consider the following statements

1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. From one trophic level to the next, 10 % energy is lost.
3. It depicts the flow of energy in an ecosystem.

Which of the statements given above is / are correct?

• A. 1 and 3 only
• B. 1 and 2 only
• C. 1, 2 and 3
• D. 2 and 3 only

Answer 1

The correct option is A 1 and 3 only

A food chain shows how energy is transferred from one living organism to another via food in the ecosystem. From one trophic level to the next, only 10% energy is passed on. A food chain is important as it shows how organisms are related to each other through the food they eat, and how the transfer of food and energy takes place.