Question

Write any four features of chordates.

Answer 1

A notochord
A dorsal hollow nerve chord
Pharyngeal sits
Post anal tail

Answer 2

1) chordates posses notochord atleast in their embryonic stage
2) they posses dorsal nerve cord .
3) pharyngeal gill slits at some stage of the life
4) post-anal tail should be present
5) ventral heart



it is my own answer becoz iam studying 11th,
for more reference go through ncert 11th book