Multiple choice

Which among the following is the disadvantage of the pyramid of productivity?

  1. Two species of comparable biomass may have very different life spans

  2. Organisms are assigned to a specific trophic level

  3. Different ecosystems can be compared

  4. This pyramid is always upright
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There is still the difficulty of assigning the organisms to a specific trophic level. As well as the organism in the food chains, there is the problem of assigning the decomposers and detritivores to a particular trophic level.

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