Question

Amphioxus belongs to the phylum ________.

Answer 1

Amphioxus:

1. Amphioxus belongs to the phylum Protochordata or Hemichordata.
2. It is a worm-like marine animal with the organ-system level of organization with the presence of the notochord at some stages of life.
3. The body is cylindrical and has an anterior proboscis, a collar, and a long trunk.

Final answer: Amphioxus belongs to the phylum Protochordata.