Fact 1: Roundworms reproduce sexually.

Fact 2: Nematodes are microscopic, true roundworms.

Given the two facts above, answer the question "Which reproduce sexually?" with the following options: 
- cacti
 - insects
 - Nematodes
 - Conifers
 - ferns
 - barnacles
 - Most plants
 - humans


 

   Nematodes      