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

Which one of the following is not used for construction of ecological pyramids?
  1. fresh weight
  2. dry weight
  3. number of individuals
  4. rate of energy flow

Solution

Ecological pyramids are the graphical representation of the trophic structure and function at successive trophic levels. The three parameters used are: (i) Number of individuals in a trophic level. (ii) Biomass of individual in a trophic level. (iii) Rate of flow of energy in a trophic level.

Asked in: NEET 2006

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