Zooplankton
Zooplankton
9th & 10th Grade Students
The ROCK Program
Sir Francis Drake High School, San Anselmo, California
Zooplankton, the animal form of plankton, includes protozoa, small crustaceans, jellyfish and worms. Protozoa are single celled organisms that can colonize; they can live in oceans, salt lakes, freshwater lakes, rivers and ponds and vary in size for two to seventy micrometers and even larger. Crustaceans are invertebrates that live in water as well as on land and can vary from microscopic to sixty centimeters. Zooplanktons main sustenance are bacteria and phytoplankton, making them the second link in the food chain (Vegas).
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