Plankton

10/21/26

“How do we classify tiny water organisms that drift instead of swim?”

We hear about plankton when discussing water environments. But what exactly are they? Well, Plankton are small organisms that drift with water currents instead of swimming against them. There are plankton in all of the major biological kingdoms, ranging in size from microscopic bacteria to massive jellyfish. Plankton are a vital part of the Earth’s water ecosystem.