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Pyramid of Numbers in Terrestrial Ecosystems

The pyramid o...

Question

The pyramid of numbers for a single tree is:

A

Upright

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B

Inverted

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C

Spindle shaped

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D

Square shaped

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Solution

The correct option is C Spindle shaped
Trees are very large, but the herbivores like caterpillars are very small. One tree can feed many caterpillars, but many caterpillars are needed to feed a small sparrow, and many small sparrows are needed to feed a sparrow hawk. If we draw a pyramid of numbers for this food chain, it looks spindle shaped.

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Pyramid of Numbers in Terrestrial Ecosystems

Standard XI Biology

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