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Unformatted text preview: walls, active movement, sexual reproduction, embryonic development. 2. Give the five key transitions in body plan. Explain why one might call them key transitions (i.e. what do they enable an organism to do that they couldnt do before). 3. Explain how each of these transitions are beneficial to survival of a species. 4. Compare and contrast asymmetry, radial symmetry, and bilateral symmetry. 5. Differentiate among acoelomate, pseudocoelomate, and coelomate organisms; indicate how they are evolutionarily related and give examples of each. 6. Understand the advantages of segmentation; give at least one example of segmentation in each of the coelomate phyla. 7. Differentiate between protostomes and deuterostomes. 1...
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- Fall '08