Zooplankton are tiny animals that feed on phytoplankton, and many zooplankton are crustaceans. Given these facts, what can feed on phytoplankton among the following options:
- producers
 - phytoplankton
 - passenger pigeons
 - bacteria
 - tiny crustaceans
 - the Sun
 - honeybees
 - parasites


 

     tiny crustaceans    