Which of the following explains the inversion of the aquatic pyramid of biomass?
a. high phytoplankton turnover rate
b. slow aquatic predator metabolisms
c. small number of aquatic consumers
d. high energy content of phytoplankton

The correct answer is option - D. high energy content of phytoplankton.

Explanation:

Primary producers generate high-quality energy in an ecosystem and generally high in numbers but they can be some time fewer in the number than top trophic level consumers.

Inverted aquatic pyramid of biomass exhibits that the primary producers have low in numbers or biomass than primary consumers. Phytoplanktons are the example of such case as zooplanktons (primary consumers)

Thus, the correct answer is option- D. high energy of phytoplanktons.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

the answer is b.) hydrogen bonds between bases.