Chordates Flashcards
1
Q
Urochordata
A
Tunicates
2
Q
Cephalochordata
A
Lancelets
3
Q
Craniata
A
Hagfish, no back bone
4
Q
Have Cranium and back bone
A
Lampreys
5
Q
Gnathostomata
A
Jaws
6
Q
Placoderms
A
an extinct fish have armor
7
Q
Chondrichthyes
A
Cartilage fish, like sharks, above lampreys
8
Q
Osteichthyes
A
Bony fish, active gills
have 2 groups:
Ray-finned: eel, trout
Lobe-Finned: lung fish, related to tetrapods
9
Q
Amphibians
A
Double life, live on land and water, must lay eggs in water
10
Q
Reptiles
A
have amnion !!!
1st true terrestrial vertebrates
11
Q
endothermic
A
only birds and mammals
12
Q
Lung
A
Amphibians, Reptiles and Mammals
13
Q
Hearts
A
Fish:
Amphibians:3
Mammals, birds: 3