Question

Distinguish between non-chordates and chordates.

Answer 1

Non Chordates	Chordates
1. The vertebral column is absent.	1. The vertebral column is present.
2. The central nervous system is solid and ventral.	2. It is hollow and dorsal.
3. If the heart is present, it is dorsal.	3. The heart is ventral.
4. If hemoglobin is present, it is dissolved in plasma.	4. Hemoglobin is present in Red blood cells.
5. No post-anal tail.	5. The anal tail is present.
6. E.g. Protozoa, Arthropods, Annelida.	6. E.g. Aves, Reptiles, Mammals.