Respuesta :

Mathunga
This is actually true. CHordates include the marine invertebrates from the subphylums Tunicata and Cephalochordata.
KyngOyinda
True
Vertebrates are all chordates which have a backbone. The other two subphyla are invertebrate chordates that lack a backbone. Members of the subphylum Urochordata are tunicates (also called sea squirts). Members of the subphylum Cephalochordata are lancelets.