Question

an increase in the number of phytoplankton in an aquatic ecosystem is always beneficial. please select the best answer from the choices provided o t o f

Explanation:

While phytoplankton are primary producers and form the base of the aquatic food - web, an excessive increase can lead to harmful algal blooms. These blooms can deplete oxygen levels when the phytoplankton die and decompose, and some species can produce toxins. So, an increase is not always beneficial.

Answer:

F