Question

The protochordate with all basic chordate features is

Answer 1

Answers: Amphioxus (Branchiostoma) in subphylum cephalochordata.

Explanation:

Answer 2

Amphioxus is the protochordate with all basic chordate features.

• Protochordate is also known as Acraniata.
• Acraniata means that they lack a true skull.
• Protochordate is classified into Urochordata and Cephalochoradata.
• Urochordata have the presence of notochord in the larval stage at the tail region and disappear when it becomes an adult. e.g. Herdmania.
• Cephalochordata have notochord throughout their life and it extends to the head region. e.g. Amphioxus.