You are presented with the question "What feed on plant plankton?" and the following answer choices: 
- passenger pigeons
 - parasites
 - sunlight
 - animal plankton
 - ice
 - horses
 - absorb light energy
 - honeybees

Now knowing that zooplankton are tiny animals that feed on phytoplankton and planktonic plants are called phytoplankton, choose the best answer.


 

    animal plankton     