Q: Vertebrate chordates have what part of the skeletal system?
Options:
- (A) spinal column
- (B) hard bones
- (C) aerobic capacity
- (D) cartilage bones
- (E) critical organs
- (F) joints
- (G) fur and fat
- (H) graptolites
Let's think step by step below.
Vertebrate chordates have a backbone. Invertebrates are animals who lack a backbone or spinal column. Vertebrate chordates have a spinal column.
Thus, the answer is (A).