You are presented with the question "What do mussels eat?" and the following answer choices: 
- bivalves
 - sub-units of species
 - Something coming from a gland
 - mussels
 - plankton and nonliving organic
 - Something made from fermented ricce
 - mollusks
 - Microscopic organisms

Now knowing that bivalves feed on plankton and nonliving organic matter and mussels are bivalve mollusks, choose the best answer.


 

     plankton and nonliving organic    