Lampreys Sharks ai į ie Bony fish tre s Jaw spe ie trees t or ext Lung or swimbladder Lungfish E Amphibians Mammals Four legs Hair Moisture-retaining egg for terrestrial living Turtles Snakes and lizards Skull with two openings Crocodiles Birds 52 Feathers

Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter25: Animal Evolution-the Chordates
Section: Chapter Questions
Problem 4SQ
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Find the hash mark indicating the origin of jaws. Which groups of vertebrates
possess jaws? Which group(s) diverged before jaws originated?

Lampreys
Sharks
ai į ie
Bony fish
tre s
Jaw
spe ie
trees t
or ext
Lung or
swimbladder
Lungfish
E
Amphibians
Mammals
Four legs
Hair
Moisture-retaining egg
for terrestrial living
Turtles
Snakes
and lizards
Skull with two
openings
Crocodiles
Birds
52
Feathers
Transcribed Image Text:Lampreys Sharks ai į ie Bony fish tre s Jaw spe ie trees t or ext Lung or swimbladder Lungfish E Amphibians Mammals Four legs Hair Moisture-retaining egg for terrestrial living Turtles Snakes and lizards Skull with two openings Crocodiles Birds 52 Feathers
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