Vertebrate chordates have a backbone, and invertebrates are animals who lack a backbone or spinal column. Given these facts, vertebrate chordates have what part of the skeletal system among the following options:
- spinal column
 - hard bones
 - aerobic capacity
 - cartilage bones
 - critical organs
 - joints
 - fur and fat
 - graptolites


 

 spinal column        