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Question
The shape of pyramid in a particular ecosystem is always different in shape. Explain with example.
Solution
In a forest ecosystem, the pyramid of number is spindle in shape, it is because the base (T1) of the pyramid occupies large-sized trees (Producer) which are lesser in number. Herbivores (T2) (Fruit-eating birds, elephants, and deer) occupying the second trophic level, are more in number than the producers. In the final trophic level (T4), .tertiary consumers (lion) are lesser in number than the secondary consumer (T3) (fox and snake).
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