ch 34


Which should conclude that its not a snake


the absence of scales on its surface


which if observed, should help them arrive at a conclusive answer


presence of lungs


size difference between lungs in this organism is not a shared ancestral characteristic, existance explained as


convergent evolution, similar adaptation to a shared lifestyle or bodyplan, homoplasy

(C)


Which strucutres should be found upon dissection


reduced or absent pelvic and/or pectoral girdles


condidtion of the eyes in this organism is similar to placental and marsupial moles


posterior-directed opening of the female bandicoot's marsupium


which should clear up any remaining doubt?


blood vessels carrying oxygenated blood from both the skin and functional lung to the heart


mystery organism belongs to which order and class?


ApodaAmphibia


extant reptiles that had returned to an aquatic life


1 and 2


represents extant, nonbird reptiles


3 and 4


forelimbs are most analogous to those of keeled birds and bats


7


dna would have sequence homologies with amphibian dna


9


most inclusive have foramina magna centrally positioned in base


hominins


apes


hominoids


apposable thumbs


anthropoids


prosimians


primates


old world monkeys and new world monkeys


anthropoids


found in all species of eumetazoan animals


Hox


cluster of genes coding for transcription factors involved in evolution of innovations in early vertebrate nervous syst and vertebrae


Dlx


gene linked to development of speech in hominids


FOXP2