Question

What is a stomochord?

Answer 1

Stomochord :

1. The tubular, flexible hollow structure that arises during embryonic development in hemichordates.
2. It arises from the roof of the embryonic gut as an out pocketing that leads into the pharynx.
3. The wall of the stomochord is composed of a single layer of narrow cells.
4. The outer surface of the stomochord is composed of epithelial cells similar to cells of the buccal cavity of chordates.
5. The stomochord is a supportive structure that helps in locomotion.
6. Example: Balanoglossus.