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

Fact 2: Roundworms Nearly all puppies and kittens have roundworms.

Given the two facts above, answer the question "What might puppies and kitties have?" with the following options: 
- They have thick fur
 - leeches
 - Animal fur
 - fur and fat
 - sensory neurons
 - parasitic snakes
 - crickets
 - parasitic worms


 

        parasitic worms 