What is the role of the backbone in the vertebrate

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Unformatted text preview: halls. What is the role of the backbone in the vertebrate body? What specific animals are the living relatives of the ostracoderms? Specify the key anatomical difference between ostracoderms and placoderms. Based on the fossil displays, which were larger: ostracoderms or placoderms? Explain how the above difference is size is a consequence of the key anatomical difference between the two groups. In which environment did the tetrapod limb appear: in water or on land? Specify one anatomical difference between fish swim bladders and tetrapod lungs. Specify the character that unites the sarcopterygians (and is absent in other fishes). Which has a more dorso-ventrally flattened head: the first tetrapods or their fish ancestors? Which have larger skeletons on display: modern lissamphibians or their extinct closest relatives? Which living vertebrate groups make up the modern amniotes? 2 What character is defines the sauropsids (and is absent in synapsids)? Even though snakes do not have legs, they are considered to be tetrapods. Explain this. [1 point] Are pterosaurs dinosaurs? Halls of Saurischian and Ornithischian Dinosaurs (4th Floor) What character defines the dinos...
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This homework help was uploaded on 02/18/2014 for the course BIO 101 taught by Professor Fitch during the Fall '08 term at NYU.

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