You are presented with the question "What can the phylum Nematoda be?" and the following answer choices: 
- dangerous
 - parasitic
 - horses
 - meiosis
 - more abundant
 - graptolites
 - homogenous
 - phytoplankton

Now knowing that roundworms may be free-living or parasitic and roundworms make up the roundworm phylum, Nematoda, choose the best answer.


 

  parasitic       