Distinguish between chordates and Non chordates.
Class 11 Biology chapter 4 notes show the difference between chordates and Non chordates as follows.
Chordates |
Non-chordates |
Notochord is present. |
Notochord is absent. |
Central nervous system is hollow, single and dorsal. |
Central nervous system is solid, double and ventral. |
Pharynx perforated by gill slits. |
Gills are not present. |
Heart is ventral. |
Heart, if present is dorsal. |
A post-anal part(tail) is present. |
A post-anal part(tail) is absent. |