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Unformatted text preview: LAB Chordate Diversity Page # 45 CHORDATE DIVERSITY (Campbell, 7 th ed. and 8 th ed., chapter 34) I. Phylum Chordata VIII. Bony Fishes: Osteichthyes Actinopeterygii and Sarcopterygii II. Urochordata IX. Amphibia III. Cephalochordata X. Amniota IV. Craniata XI. Reptilia V. Vertebrata XII. Aves VI. The Fishes XIII. Mammalia VII. Cartilaginous Fishes: Chondrichthyes Objectives : at the completion of this exercise you should be able to: 1. Discuss at a very basic level, how various taxa (group) arose, and some major features used to distinguish between the various taxa (groups). 2. Compare and contrast the way major vertebrate groups solve specific problems of locomotion, osmoregulation, food acquisition, defense, thermoregulation and mate selection/reproduction. 3. Discuss how different adaptations have evolved to solve the same problem. 4. Discuss the relationship between certain morphological and behavioral features and the specific habitat in which the animal lives. 5. Answer questions asked on the worksheet. 6. The boxed comments and the Chordate diversity worksheet will form the basis for the majority of your second lab exam, but don't overlook underlined/bold terms and emphasized concepts. Requirements: ( √ ). The pre-lab is due at the start of lab. The worksheet is due at the end of lab. Both are available in the pre- lab/worksheet packet available at Replica Copy or from our website (mcb.berkeley.edu/courses/bio1a). In addition there is a blank chart that should be filled out as you do the lab. ( √ ). It is very important that you read this lab thoroughly before coming to lab! ( √ ). The cladograms on page 48 and 59 are useful for organizing the material. You need to know them. You should always check bSpace for more up to date versions, and use those presented in lecture. ( √ ). This is a long lab with a lot of material covered and displays to see. Stay calm and focus on the major concepts, especially underlined/bold terms and boxed paragraphs. Ask your instructor if you are confused. They are there to answer questions. Overview Of all of the phyla you will examine in Biology 1A the chordates are the most familiar to you. You are a chordate. As a group, they are probably more similar than any other phylum. The group is named due to the presence of a notochord. Be sure to know the general characteristics of the Chordates and of the various groups. The diversity worksheet will guide you through the lab. You should also fill out the chart at the end of the lab manual. The complete phylogeny diagram on pages 52 and 63 will be helpful to refer to while reading this lab. This lab is a very brief survey of the chordates and it is designed to give you some insight into the diversity and complexity of vertebrate animal life, adaptations, ecology and evolution. Page # 46 LAB Chordate Diversity Various live organisms, study skins, mounts and skeletons are present in lab. Do not touch specimens unless specifically instructed otherwise....
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This note was uploaded on 02/24/2010 for the course BIO General Bi taught by Professor Mehgian during the Fall '09 term at Berkeley.
- Fall '09