Plankton Component is a term used to describe the microscopic organisms that live in aquatic environments. These organisms include ALGA (4 letters), which are single-celled organisms that contain chlorophyll and can photosynthesize; ALGAE (5 letters), which are multicellular organisms that contain chlorophyll and can photosynthesize; and DIATOM (6 letters), which are single-celled organisms with silica shells that are found in both freshwater and marine environments. All of these organisms are important components of plankton communities, as they provide food for larger organisms and help to cycle nutrients throughout the aquatic environment.