Question

1. Construct a pyramid of biomass in sea with phytoplankton and fishes. Explain giving reasons about the characteristic of the constructed pyramid.
2. In which condition will the pyramid remain always upright?

Answer 1

1. Pyramid of biomass in sea
   A 12 gm/m² biomass pyramid illustrates the amount of living matter at each trophic level in an ecosystem. Fish outnumber phytoplankton in the sea, resulting in an inverted biomass pyramid.
2. The second rule of thermodynamics states that energy is lost as heat with eachtransfer, which, causes energy to decrease as it passes through trophic levels in an ecosystem, which explains why the energy pyramid is always upright.