You are presented with the question "what ingests sediment and extracts food particles?" and the following answer choices: 
- animals
 - soil
 - humans
 - a fish
 - earthworms
 - barnacles
 - h2o
 - bacteria

Now knowing that earthworms are important deposit feeders that help form and enrich soil and deposit feeders ingest sediment and extract food particles, choose the best answer.


 

     earthworms    