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NEETBotanyEcosystem

A researcher is constructing an ecological pyramid for a forest ecosystem but encounters a difficulty: a particular species of bird in the forest feeds on both plant seeds and herbivorous insects. Which specific limitation of ecological pyramids is best highlighted by this difficulty?

Options

  1. AEcological pyramids do not accommodate a food web
  2. BIt does not take into account the same species belonging to two or more trophic levels
  3. CIt assumes a simple food chain, something that almost never exists in nature
  4. DSaprophytes are not given any place in ecological pyramids

Correct answer

B. It does not take into account the same species belonging to two or more trophic levels

Step-by-step solution

By feeding on plant seeds, the bird acts as a primary consumer (second trophic level). By feeding on herbivorous insects, the bird acts as a secondary consumer (third trophic level). Ecological pyramids are constructed with each organism assigned to a single trophic level. The difficulty in placing this bird in the pyramid directly highlights the limitation that ecological pyramids do not take into account the same species belonging to two or more trophic levels. Answer: It does not take into account the same speci

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