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Zoology 8th Edition by Stephen Miller,John Harley
Edition 8ISBN: 978-0073028200Zoology 8th Edition by Stephen Miller,John Harley
Edition 8ISBN: 978-0073028200 Exercise 19
Pterosaurs and pterodactyls are ruled out as the ancestors of birds because they lost an important avian feature, the __________, long before birds appeared.
A) wings
B) feathers
C) clavicles
D) beak
E) bones lightened by air spaces
A) wings
B) feathers
C) clavicles
D) beak
E) bones lightened by air spaces
Explanation
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Zoology 8th Edition by Stephen Miller,John Harley
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