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 "In what does a range of reproductive systems occur?" with the following options: 
- seeds
 - Plants growth
 - alpacas
 - shrub beds
 - Most plants
 - fur seals
 - barnacles
 - roundworms


 

        roundworms 