Chordata Flashcards
1
Q
Examples
A
Mammals, reptiles bird
2
Q
symentry
A
bilateral
3
Q
segmentation
A
none
4
Q
coelomate
A
yes
5
Q
Blastropore
A
Protostome
6
Q
Germ layer
A
triplobastic
7
Q
What is a Notocord
A
Stiff rod of mesoderm which develops into a backbone
8
Q
Cartilaginous fish
A
Reproduction sexual and mostly internal, Embryo incased in a leathery egg
9
Q
Bony rayed fish
A
Rigid bony skeleton, Paired fins, Swim bladder for bouancy, Usually single dorsal fin
10
Q
Amphibians
A
Water is critical for reproduction, Eggs don’t have shells
11
Q
Reptile
A
Tetrapod vertebrates, evolved from reptiles, adapted for life on dry land. Scales, ‘Cold blooded’, most lay eggs, No aquatic larvae
12
Q
Birds
A
Arose from dinosaurs, unlike crocodiles they walk upright
