ZOO 2090 Study Guide - Midterm Guide: Chordate, Yolk, Hemichordate
18 Mar 2013
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No old midterms: do not use anything from last year; last years exam was made by a different teacher therefore any of his old midterms are completely different. 40 questions 20 multiple choice, 20 short answer questions. Some hard questions (short answer), some easy (lecture slides) Everything is just from lecture notes (taken from different pats of the textbook- use to elaborate) 12 lectures (structure and function) how did they evolve together. Annelids/arthropod ancestor( nerve cord is ventral) but in chordates this flips (nerve cord is dorsal= hollow), segmentation ( along the body, easily seen in worms have same number of organs) Form of a chymoderm larval ancestor (sea urchins larval stage) = have a different body than adults (radically symmetrical) Echinoderm"s were part of deutristoma due to blastopore opening (this decided protostomes or deutostomes classification) Body or axial inversion: fossils- very few show evolution.
