Flexi Says: Plankton are tiny aquatic organisms that cannot move from place to place on their own. Instead, they are carried along by the motion of ocean water. Plankton live in the photic zone. They include phytoplankton and zooplankton. Phytoplankton are bacteria and algae that use sunlight to make food. Zooplankton are tiny animals that feed on phytoplankton.
