Fact 1: Roundworms make up the phylum Nematoda.

Fact 2: Nematodes are simple roundworms.

Given the two facts above, answer the question "What phylum are Nematodes in?" with the following options: 
- Most plants
 - ferns
 - parasites
 - Epidermis
 - white
 - insects
 - graptolites
 - Nematoda


 

        Nematoda 