Question

A food chain in an ecosystem represents the __________________.

• A. Feeding relationship
• B. Energy flow
• C. Ecological succession
• D. (a) and (b)

Answer 1

The correct option is D (a) and (b)

Transfer of food energy from the producers through a series of organisms with repeated eating and being eaten is known as food chain. The food chain consists of producers, primary consumers, secondary consumers, tertiary consumers or top carnivores and decomposers. Energy trapped by the producers are transferred to other organisms in the food chain. Therefore a food chain in an ecosystem represents both feeding relationship and energy flow in an ecosystem. Ecological succession on the other hand, is the gradual process by which ecosystems change and develop over time.