Fact 1: Roundworms may be free-living or parasitic.

Fact 2: Nematodes are microscopic, true roundworms.

Given the two facts above, answer the question "What are some nematodes?" with the following options: 
- dangerous
 - fungi
 - parasites
 - flying
 - parisitic
 - warm-blooded
 - invincible
 - insects


 

     parisitic    