Biology · ANIMAL KINGDOM

Which of the following comparative distinctions between Chordates and Non-Chordates is false?

1. In chordates, the central nervous system is dorsal, hollow, and single
2. In non-chordates, the central nervous system is ventral, solid, and double
3. Pharynx is perforated by gill slits in chordates, whereas gill slits are absent in non-chordates
4. Heart is dorsal in chordates and ventral in non-chordates (if present)