PHYLUM CHORDATA









Unique characteristics of chordata: 






Not all of these characteristics are apparent in adult organisms and may appear only in the embryonic or larval stages.







classification of chordata into four sub-phyla


- Urochordata (sea squirt, Halocynthia sp.)
Hemichordata (acorn worm, Saccoglossus sp.)
-Cephalochordata (lancelet, Amphioxus sp.)
-Vertebrata





 Urochordata (sea squirt, Halocynthia sp.)







Hemichordata (acorn worm, Saccoglossus sp.)






Cephalochordata (lancelet, Amphioxus sp.)






Six common classes of sub-phylum Vertebrata


-Class Chondrichthyes (cartilaginous fish) (ray fish, Raja sp.)
-Class Osteichthyes (bony fish) (scad, Selar sp.)
- Class Amphibia (frog, Rana sp.)
- Class Reptile (crocodile, Crocodilus sp.)
-Class Aves (pigeon, Columba sp.)
- Class Mammalia (rat, Rattus sp.)








Class Chondrichthyes (cartilaginous fish) 


(ray fish, Raja sp.)


 


Class Osteichthyes (bony fish) (scad, Selar sp.)






Class Amphibia (frog, Rana sp.)






Class Reptile (crocodile, Crocodilus sp.)



Class Aves (pigeon, Columba sp.)




Class Mammalia (rat, Rattus sp.)



PREZI PRESENTATIONS