Definition of Zooplankton
Zooplankton is small animals that drift with the aid of water currents. There are heterotrophic in nature and they range from microscopic species to large-sized organisms such as jellyfish. These organisms are found in large water bodies like oceans and lakes. They along with the phytoplankton are ecologically very important and central components of the food chain. The oceanic organisms depend on these small animals and acquire all the nutrients from them.
Examples of Zooplankton:
include species like radiolarians, mollusca, crustaceans, dinoflagellates, etc. these zooplankton feed on the bacterioplankton, phytoplankton, and on some species of zooplankton.