Question

write 5 features of all chordates

Answer 1

1. Single, hollow nerve cord beneath dorsal surface.

2. Notochord:

present in all chordates; displaced in vertebrates by vertebral column that forms around the nerve cord

3. Pharyngeal slits

4. Postanal tail

5. Segmentation

Answer 2

1. Body is supported by notochord (have some support to body)

2. Pharyngeal gill-slits or lungs are present for respiration

3. Nerve chord is present on dorsal (back side of body) side of body, it is hollow

4. Heart is present on ventral (front side of the body) side of body