Question: Vertebrate chordates have what part of the skeletal system?\nOptions:\n- (A) spinal column\n- (B) hard bones\n- (C) aerobic capacity\n- (D) cartilage bones\n- (E) critical organs\n- (F) joints\n- (G) fur and fat\n- (H) graptolites
Let's be accurate as possible and think step-by-step.
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Vertebrate chordates have a backbone. Invertebrates are animals who lack a backbone or spinal column. Vertebrate chordates have a spinal column.
The answer: (A).
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