Question

2.what is the basis of classification of
protochordata
1Gut
2Brain
3Gills
4 Notochord
​

Answer 1

Answer:

They don't form a “proper” taxonomic group and are only classified as such for convenience purposes. However, they do form a major division of Chordata. They are also known as Acraniata because they lack a true skull. They are divided into three sub-phyla- Hemichordata, Urochordata, Cephalochordata.

Answer 2

Answer:

hemichordates.........