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The upright pyramid of number cannot be seen with ecosystem.

ALake

BGrassland

CPond

DForest

Answer:

D. Forest

Read Explanation:

  • Pyramid of numbers represents the number of individuals per unit area at various trophic levels.

  • It is always upright in grassland, pond and lake ecosystems.

  • But in a forest, it is a partly upright pyramid of numbers because the number of producers are lesser in number and support a greater number of herbivores and which in turn support a fewer number of carnivores.


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