Question

Difference between chordata and nonchoradata

Answer 1

chordata                                                                   non-chordata
notochord present                                              notochord absent
pharynx perforated by gill slits                            gill slits absent
ventral heart                                                         dorsal heart
post anal part is present                                      post anal part is absent
central nervous system is dorsal,                central nervous system is ventral,
hollow and single                                              solid and double

Answer 2

{Hello}

Notochod - The long,rod like supporting structure present on dorsal side of an animal body is called no to chord..

(2)Chordata : The animal which have dorsal, supporting no to chord in their bodies are called chordates..

Thank you