Fact 1: Vertebrate chordates have a backbone.

Fact 2: Because reptiles are vertebrates, they are chordates.

Given the two facts above, answer the question "What do reptiles have?" with the following options: 
- wild rides
 - nerves
 - toadies
 - Bodily water
 - backbones
 - four limbs
 - Leptospirosis
 - pipe


 

     backbones    