Which Organisms Can Only Be Found in the Photic Zone

Question

Which organisms can only be found in the photic zone of any aquatic ecosystem?
A) Zooplankton
B) Phytoplankton
C) Fungi
D) Larger animals, like fish

Accepted Answer

Phytoplankton require sunlight for photosynthesis, so they are found only in the photic zone where sunlight penetrates.