Name two invertebrate subphyla of the phylum Chordata?

Question

thank you everyone

Answer 1

INVERTEBRATE CHORDATES

The two subphyla of invertebrate chordates, the subphylum Urochordata (1250 species) and the subphylum Cephalochordata (45 species), lack a vertebral column. Although insignificant and little known, these marine animals are of great scientific interest as it is generally accepted that their ancestors were close relatives of the ancestral vertebrate

N.B. :

The phylum Chordata is broken down into three subphyla: Urochordata, Cephalochordata, and Vertebrata. Urochordate larvae have a notochord and a nerve cord but these are lost in adulthood. Cephalochordates have a notochord and a nerve cord but no vertebrae. In all vertebrates except for Hagfish, the dorsal hollow nerve cord has been surrounded with cartilaginous or bony vertebrae and the notochord generally reduced

Answer 2

This isn't a Botany question, but... As you likely know, the Phylum Chordata primarily includes vertebrates. You are thinking of: Urochordata and Cephalochordata.

For more, see: http://en.wikipedia.org/wiki/Chordate