Question

Inverted pyramid of biomass can be traced in which one of the following ecosystem
A] rain forest
B] Desert
C] Ocean
D] Tundra

Answer 1

Hint: Ecological pyramids are graphical representations of various ecological parameters at the successive trophic level of food chains with producer at the base, top carnivores at the apex and intermediate level in between.
Pyramids of biomass
Upright: - pyramids of biomass in the terrestrial ecosystem are usually upright. For upright pyramids, total biomass of plant producers in a specific area is more than that of herbivores and it gradually decreases at each successive trophic level.
Inverted- in the aquatic ecosystem pyramids of biomass can be inverted. For example biomass of zooplankton is higher than that of phytoplankton as the lifespan of the former is longer.

Complete answer:
A] rain forest- it has more number of producers than consumers. Hence the option is not correct
B] desert: in the desert more number of organisms act as producers than consumers. So the option is not correct.
C] ocean – in the ocean more number of organisms are consumers and less are producers. Hence the option is correct
D] tundra- tundra is an example of forest and in forest more number of producers are present . so the option is not correct.

Our required Ans is c that is oceans.

Note: Limitations of ecological pyramids-
It does not take into account the same species belonging to two or more trophic levels
It assumes simple food chain and does not accumulate a food web
Saprophytes, decomposers, microbes and detritivores are not given any place in ecological pyramids.