Key differences, features, and comparative analysis of Subphylum and Notochord.
| Subphylum | Notochord | Examples |
|---|---|---|
| Urochordata (Tunicata) | Present only in the larval tail | Ascidia, Salpa, Doliolum |
| Cephalochordata | Extends from head to tail, persists throughout life | Branchiostoma (Amphioxus / lancelet) |
| Vertebrata | Notochord replaced by a vertebral column in the adult; have a cranium | Fishes → Mammals |
This comparison table is part of the chapter notes for Animal Kingdom. Get complete notes, flashcards, active recall sheets, and test prep modes: