BISC 120 Section 3 review guide

BISC 120 Section 3 review guide - MIDTERM 3 Review sheet...

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MIDTERM 3 Review sheet This document lists SOME of the topics that were covered in lectures or in the relevant chapters of the textbook. The Midterm may include any material covered in the lectures or in the assigned textbook chapters. Chapter 32 AN INTRODUCTION TO ANIMAL DIVERSITY 1. The characteristics that combine to define animals. 2. The role of Hox genes in animal development. 3. The evidence that suggests animals may have first evolved over a half billion years ago. 4. The evidence of animal life in the Neoproterozoic Era. 5. The significance of the Cambrian explosion. Three hypotheses for the cause of the Cambrian explosion. 6. Distinguish between grades and clades of animal taxa. 7. The major grades of the animal kingdom based on symmetry, embryonic germ layers, the presence or absence and type of coelom, and protostome or deuterostome development. 8. Distinguish between radial and bilateral symmetry. Animal symmetry may match the animal’s way of life. 9. Distinguish among the acoelomate, pseudocoelomate, and coelomate grades. The functions of a body cavity. 10. Distinguish between the following pairs of terms: a. diploblastic and triploblastic b. spiral and radial cleavage c. determinant and indeterminate cleavage 11. Compare the developmental differences between protostomes and deuterostomes, including: a. pattern of cleavage b. fate of the blastopore c. coelom formation 12. The five major features of animal phylogeny that are supported by both systematic analyses of morphological characters and recent molecular studies. 13. The alternate relationships of annelids and arthropods that are supported by systematic analyses of morphological characters and recent molecular studies. 14. Distinguish between the ecdysozoans and the lophotrochozoans.
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Chapter 33 INVERTEBRATES Sponges 1. Why sponges are considered to be basal animals. 2. The morphology and function of each part of a sponge (including the spongocoel, choanocyte, mesohyl, amoebocyte, osculum, and spicules). 3. How a sponge feeds and digests its food. Cnidaria 4. The characteristics of the phylum Cnidaria that distinguish it from other animal phyla. 5. The specialized cells that are found only in Cnidarians. 6. The two variants of the basic body plan in Cnidaria. The role of each variant in Cnidarian life cycles. 7.
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This note was uploaded on 03/22/2010 for the course BISC 120 taught by Professor Webb,wetzer,? during the Fall '07 term at USC.

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BISC 120 Section 3 review guide - MIDTERM 3 Review sheet...

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