Lab 4 - Vertebrate Phylogeny

Lab 4 - Vertebrate Phylogeny - The crocodile, snake and...

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Vertebrate Phylogeny By Jamal Farah 6407480 BIO1130 Section B7 Demonstrators: Gleb Mironov and Shinjini Pal November 29 th , 2011 Department of Biology University of Ottawa
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Conclusion The evolution of endothermy within vertebrates, such as the pigeon, bear, and monkey, all has paired limbs. The bear and the monkey both have hair and have 5 digits on hind limb. This evolution defines a monophyletic group. The common ancestor of all endotherms happens to be the Lamprey. There is a homoplasy in between the shark and bear & monkey; they have the similar way of producing nitrogenous wastes such as urea.
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Unformatted text preview: The crocodile, snake and pigeon have a similar way of excreting wastes such as uric acid. Another homoplasy is present within the mudpuppy, crocodile & pigeon which are the same number of digits (4) on each limb. Finally, the homoplasy within bear, monkey, crocodile and pigeon, is that they also have paired limbs. Although the endotherms and ectotherms have similar traits, they both originated from the lamprey, which is a common ancestor for both characters....
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This note was uploaded on 12/03/2011 for the course SCIENCE BIO1130 taught by Professor Fenwick during the Spring '11 term at University of Ottawa.

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Lab 4 - Vertebrate Phylogeny - The crocodile, snake and...

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