Plankton vs. Algae

Difference Between Plankton and Algae
Planktonnoun
The small or microscopic organisms that drift or swim weakly in a body of water, including bacteria, diatoms, jellyfish, and various larvae. Plankton is an important food source for fish and other larger organisms.
Algaenoun
Any of numerous photosynthetic organisms of aquatic or moist habitats, ranging in size from single-celled diatoms to large seaweeds such as kelp, and characterized by a lack of complex organs and tissues. Once classified within the plant kingdom, the algae are now considered to include several unrelated groups belonging to different kingdoms.
Planktonnoun
Small (often microscopic) organisms that float in the water. (A single organism is known as a plankter.)
Algaenoun
primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
Planktonnoun
the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water