Question

all vertebrates are chordates but all chordates are not vertebrates justify

Answer 1

absence of spinal cord

Answer 2

All vertebrates are chordates but all chordates are not vertebrates justify

Answer => members of subphylum vertebrata posses notochord during the embryonic period.thus the notochord is replaced. By a bony vertebral column in adults thus all vertebrates are chordates but all chordates are not vertebrates