ZOO 2090 Lecture Notes - Lecture 1: Jinzhong, Deuterostome, Tunicate

• School: University of Guelph
• Department: Zoology
• Course: ZOO 2090
• Professor: Jinzhong Fu

Document Summary

Why be a note taker? (cid:120) it"s easy. No more effort than uploading or scanning your notes (cid:120) typically helps improve your grades (cid:120) help other students on campus who really need it (cid:120) earn a great reference letter. Course should be approached as a holistic learning experience. Lectures and labs complement and reinforce each other. Each accounts for 50% of the course evaluation. Homologous characters share a common ancestry/derived from the same ancestral structure, i. e. , human hands, bird wings and dolphin flippers are homologous as forelimbs. Evidence for homology: linked in fossil records, come from the same embryonic precursor, phylogenetic comparison, . Analogous characters are those have the same function but not necessarily the same ancestry. They may be homologous, but not necessarily, i. e. , insect wing, bird wing. A phylogeny is a genealogy (historical relationships) of species or higher taxa. A group that includes the most recent common ancestor and all its descendants is a monophyletic group.