Question

"The pyramid of biomass is not always upright". Explain the statement. [2 Marks]

Answer 1

The pyramid of biomass is not always upright. It is inverted when the number of consumers is more than the producers. [1 Mark]

An example is an aquatic ecosystem where the biomass of smaller fish is much higher than that of their feed that is phytoplankton. Also the biomass of bigger fish that eat the smaller fish is also more. [1 Mark]