Question

Which of the following is not used for construction of ecological pyramids?

• A. Fresh weight
• B. Dry weight
• C. Number of individuals
• D. Rate of energy flow

Answer 1

Answer: (A)

Fresh weight

An ecological pyramid is a graphical representation of relationship between different organisms. It shows the biomass at each trophic level of an ecosystem. It is of three types, pyramid of numbers, pyramid of energy and pyramid of biomass. Pyramid of numbers indicates the total number of individuals at each trophic level. Pyramid of energy indicates the rate of energy flow. Pyramid of biomass indicates the dry weight of living organisms at each trophic level.

Thus, the correct answer is 'Fresh weight.'