Question

List out the characteristic features of protochordates.

Answer 1

Protochordates:

Characteristic features of protochordates are:

1. Protochordates are considered invertebrate chordates.
2. They are called acraniates, i.e., absence of cranium.
3. The animals are bilaterally symmetrical.
4. The presence of notochord at some stages of life is seen.
5. Respiration is by means of gill slits (located in the dorsal position).
6. Open type of blood vascular system with colourless blood.