Fact 1: Bivalves feed on plankton and nonliving organic matter.

Fact 2: Mussels are bivalve mollusks.

Given the two facts above, answer the question "What do mussels eat?" with the following options: 
- bivalves
 - sub-units of species
 - Something coming from a gland
 - mussels
 - plankton and nonliving organic
 - Something made from fermented ricce
 - mollusks
 - Microscopic organisms


 

     plankton and nonliving organic    