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Field survey by a team of students recor...

Field survey by a team of students recorded the following data related to number of organisms in an ecosystem and plotted that into a figure shown below:

Observe the figure and explain the pyramid

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It is an inverted pyramid of number. If a plant takes an ecosystem number of producer is one more than herbivorous insects, birds, etc. It is 2nd trophic level. 3rd trophic level contains more parasites than herbivoes. 4th trophic level contains more hyperparasites than 3rd trophic level parasites.
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