Chordata Flashcards
1
Q
Main features of chordata
A
Bilateral symmetry, triploblastic, coelomate with organ system level segmented body with closed circulatory system
2
Q
3 Unique features
A
Notochord (mesodermal origin)
Dorsal nerve cord (ectodermal origin)
Gill slits
3
Q
3 subphyla of chordata
A
Urochordata
Cephalochordata
Vertebrata
4
Q
Notochord present in larval tail only
A
Urochordata (Ascidia, Salpa,Doliolum)
5
Q
Noto. Extends from head to tail and persistent throughout their life
A
Cephalochordata (Branchiostoma)
6
Q
N. Present in embryonic life and is replaced by a cartilaginous or bony vertebral column
A
Vertebrata
7
Q
Vertebrata division into 2 subphylum are
A
Agatha (lacks jaw)
Gnathostoma (bears jaw)
8
Q
Super class of Gnato.
A
Pisces(chondrichthyes, Osteichthyes)
and Tetrapoda (Amph,Rep,
Aves,Mammals)
