Do Protochordates Have Brain?

Brain. Vertebrates are the only chordates with a brain while protochordates lack a brain.

Do Protochordates have hearts?

Protochordata are generally found to be living in marine water. ... The pharynx in protochordata is perforated by gill slits to facilitate water circulation for respiration. The heart of these organisms is ventral with a closed circulatory system. The gut in protochordata is ventral to the nerve cord.

How are Protochordates different from vertebrates?

Like the remaining subphylum of the chordates, the Vertebrata, the protochordates have a hollow dorsal nerve cord, gill slits, and a stiff supporting rod, the notochord, the forerunner of the backbone. The protochordates differ chiefly from the vertebrates in not having a backbone.