Question : Which aquatic microorganisms eat phytoplankton and then become food for fish, crustaceans and other large species?
Option 1: Virioplankton
Option 2: Zooplankton
Option 3: Bacterioplankton
Option 4: Zooxanthellae
Correct Answer: Zooplankton
Solution : The correct option is Zooplankton .
Zooplankton, including small organisms like copepods and krill, consume phytoplankton as their primary food source. These zooplankton then serve as a crucial link in the aquatic food chain, becoming the primary food for fish, crustaceans, and larger species, sustaining the balance and productivity of marine ecosystems.
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