Question

Given below is one of the types of ecological pyramids.

This type represents

(a) pyramid of numbers in a grassland

(b) pyramid of biomass in a fallow land

(c) pyramid of biomass in a lake 

(d) energy pyramid in a spring

Answer 1

Correct option (c) pyramid of biomass in a lake 

Explanation :

Pyramid of energy is always upright as only 10% energy is transferred from one trophic level to another. Pyramid of number in a grassland is also upright as the producers are always maximum in number than herbivores and carnivores. Pyramid of biomass in a lake shows spindle shaped pyramid.