tetrapods Flashcards
(4 cards)
1
Q
what 2 characteristics do tetrapods exhibit?
A
jawed vertebrates with paired appendages
2
Q
what are the derived characters of tetrapods? (4)
A
1) limbs with digits
2) head separated from body by a moveable neck
3) bones of pelvic girdle are fused to backbone
4) adults lack gills
3
Q
what do the fused pelvic girdle to backbone permit?
A
permits forces generated by the hind legs against the ground to be transferred to rest of the body
4
Q
what do the pharyngeal clefts give rise to in adults?
A
parts of the ears and other structures
