Plankton Vocab

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Across
  1. 2. Pertaining to the bottom of a body of water; organisms living on or in the substrate
  2. 4. Microscopic organisms that drift or float in aquatic environments
  3. 7. Small animals that feed on phytoplankton or other zooplankton
  4. 8. Microscopic, photosynthetic organisms that form the base of the aquatic food chain
  5. 9. Planktonic organisms that spend only a part of their life cycle as plankton
Down
  1. 1. Unicellular algae that can be both phytoplankton and sometimes bioluminescent
  2. 2. A rapid increase in the population of planktonic organisms, often causing discoloration of the water
  3. 3. Planktonic organisms that spend their entire life cycle in the planktonic phase
  4. 5. A type of phytoplankton with a silica-based cell wall, often shaped like a glass shell
  5. 6. Small crustaceans that are a common type of zooplankton