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Solution


Q.

What type of ecological pyramid would be obtained with the following data                 [2018]

Secondary consumer: 120g
Primary consumer: 60g
Primary producer: 10g
1 Inverted pyramid of biomass  
2 Pyramid of energy  
3 Upright pyramid of numbers  
4 Upright pyramid of biomass  

Ans.

(1)

The given data depicts the inverted pyramid of biomass, usually found in aquatic ecosystem. This can be understood by taking an example of a pond in which phytoplankton (10g) represents the producer. Small fishes (60g) feeding upon these phytoplankton represent primary consumers which are further eaten by the big fishes (120g) representing secondary consumers.