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

Fact 2: Clams and oysters are examples of bivalves.

Given the two facts above, answer the question "What do clams feed on?" with the following options: 
- sand particles
 - jellyfish
 - Something made from fermented ricce
 - plankton and nonliving organic
 - minnows and other small fish
 - Something that is secreted in a shallow cup.
 - Something with a head, thorax, and abdomen
 - sub-units of species


 

    plankton and nonliving organic     