Question

Which statement explains the inverted pyramid of biomass in oceanic ecosystems?

Options

• A large standing crop of phytoplankton supports a small standing crop of zooplankton.

• Producers are more numerous than herbivores.

• A small standing crop of phytoplankton can support a large standing crop of zooplankton.

• Only 10% passes on as net energy.

Answer 1

In oceanic ecosystems, phytoplankton have a small standing crop. Nevertheless, they can support a larger standing crop of zooplankton, creating inversion.