Question

discuss the circulatory system of branchiostoma ?​

Answer 1

Answer:

The blood vascular system of Branchiostoma is of closed type. ... Heart is not found in Branchiostoma. Most blood vessels are similar, but due to their homologies with blood vessels of vertebrates they are called arteries or veins. The principal arteries have muscular walls and only dorsal aorta has an endothelial lining.

Answer 2

Answer:

${ \here \: \: is \: your \: answer \:mate}$

Explanation:

The blood vascular system of Branchiostoma is of closed type. ... Heart is not found in Branchiostoma. Most blood vessels are similar, but due to their homologies with blood vessels of vertebrates they are called arteries or veins. The principal arteries have muscular walls and only dorsal aorta has an endothelial lining.