Question

The pyramid of energy is the best representation of an ecosystem because it indicates

• A. Relation of all plants and animals
• B. Total energy present in an ecosystem
• C. The rate of flow of energy through the food chain
• D. None of the above
  

Answer 1

The correct option is C The rate of flow of energy through the food chain

• The pyramid of energy shows the relationship between the flow of energy and different trophic level.
• The pyramid of energy depicts the flow of energy in the ecosystem.
• The source of energy in an ecosystem is the sun, the producers trap the solar energy and use it for photosynthesis which is in turn eaten by organisms of the higher trophic level such as primary consumers, secondary consumers.
• So, the correct answer is 'The rate of flow of energy through the food chain'.