Fact 1: Roundworms make up the phylum Nematoda.

Fact 2: Within the Nematoda, a range of reproductive systems occur.

Given the two facts above, answer the question "What has a range of sexual reproductive systems?  " with the following options: 
- Computer systems.
 - Most plants
 - animals
 - Roundworms.
 - mammals
 - Art reproductions.
 - insects
 - Stuffed toy bears.


 

    Roundworms.     