Question

Which of the following is the correct order of appearance of structures in vertebrate evolution? Onotochord, vertebrae, jaws, bony skeleton, lungs, 4 limbs, amniotic egg vertebrae, jaws, notochord, bony skeleton, amniotic egg, lungs, 4 limbs notochord, jaws, vertebrae, bony skeleton, lungs, amniotic egg, 4 limbs jaws, notochord, vertebrae, 4 limbs, bony skeleton, lungs, amniotic egs notochord, bony skeleton, vertebrae, jaws, lungs, 4 limbs, amniotic egg

Answer 1

1. C - notochord, jaws, vertebrae, bony skeleton, lungs, amniotic egg, 4 limbs

2. E - all of these are correct

3. A - none of the answer options are false

4. E - live clams

5. E- none of the above ( all are amniote)

6. C - the madreporite