What feature do all chordates share, at least at some point in their development?
A. A tail
B. Lungs
C. Four limbs
D. Vertebrae
2007-07-24 17:01:27 · 6 answers · asked by ♥Anonymous♥ 2 in Science & Mathematics ➔ Biology
D. Vertebrae is true, the others are wrong
2007-07-24 17:14:27 · answer #1 · answered by Anonymous · 1⤊ 1⤋
A. At some point, all chordates should have a muscular, postanal tail.
2007-07-24 18:25:26 · answer #2 · answered by lancealvers2234 2 · 0⤊ 1⤋
Properly speaking, none of the above; but A is the closest to being correct. It would have been better to offer 'notochord' as an option.
2007-07-24 17:06:07 · answer #3 · answered by dukefenton 7 · 0⤊ 1⤋
D - chordate means 'has a spinal cord.' Duke's right - having a spinal cord doesn't necessarilly mean has spinal bones.
2007-07-24 17:06:13 · answer #4 · answered by naturalplastics 4 · 0⤊ 1⤋
I would have to say A. I know B and C are wrong. If "neural groove" was on the list that would have been my choice.
2007-07-24 17:10:31 · answer #5 · answered by Rich Z 7 · 0⤊ 1⤋
D.
2007-07-24 17:04:10 · answer #6 · answered by Denise 3 · 0⤊ 1⤋