Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 32, Problem 9TYU
Test Your Understanding
9. EVOLUTION LINK Sea urchins have radial symmetry. Explain why they are not classified as cnidarians.
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1. Cnidarians have been around for a long time, and they continue to be extremely successful both ecologically and evolutionarily. What attributes of cnidarians do you think allow their ongoing success?
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B) Peripheral nervous system
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D) Diffuse nervous system
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Chapter 32 Solutions
Biology (MindTap Course List)
Ch. 32.1 - Prob. 1LOCh. 32.1 - Prob. 1CCh. 32.2 - Identify three shared derived characters of...Ch. 32.2 - Prob. 1CCh. 32.2 - Prob. 2CCh. 32.3 - Describe characteristics of chordates, including...Ch. 32.3 - What are four shared derived characters of...Ch. 32.3 - Prob. 2CCh. 32.3 - Prob. 3CCh. 32.4 - Prob. 4LO
Ch. 32.4 - Prob. 1CCh. 32.4 - If you found a small fishlike animal along the...Ch. 32.5 - Prob. 5LOCh. 32.5 - Prob. 6LOCh. 32.5 - Prob. 1CCh. 32.5 - Prob. 2CCh. 32.6 - Prob. 7LOCh. 32.6 - Prob. 1CCh. 32.7 - Prob. 8LOCh. 32.7 - Prob. 1CCh. 32.7 - Prob. 2CCh. 32.8 - Describe three vertebrate adaptations to...Ch. 32.8 - Prob. 10LOCh. 32.8 - Prob. 11LOCh. 32.8 - Prob. 1CCh. 32.8 - Prob. 2CCh. 32.8 - Prob. 3CCh. 32.8 - Prob. 4CCh. 32 - Test Your Understanding 1.Which of the following...Ch. 32 - Test Your Understanding 2.Which of the following...Ch. 32 - Test Your Understanding 3.A shark is characterized...Ch. 32 - Test Your Understanding 4.Which of the following...Ch. 32 - Test Your Understanding 5.Reptiles (a) are all...Ch. 32 - Test Your Understanding 6.Which of the following...Ch. 32 - Test Your Understanding 7.Which of the following...Ch. 32 - Test Your Understanding 8.VISUALIZE Draw a simple...Ch. 32 - Test Your Understanding 9.EVOLUTION LINK Sea...Ch. 32 - Test Your Understanding 10.EVOLUTION LINK Most...Ch. 32 - Test Your Understanding 11.EVOLUTION LINK Discuss...Ch. 32 - Prob. 12TYUCh. 32 - Prob. 13TYU
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- Test Your Understanding 3.A shark is characterized by (a) amnion (b) bony skeleton (c) water vascular system (d) placoid scales (e) endothermy and amnionarrow_forwardTest Your Understanding 4.Which of the following characteristics is/are associated with amphibians? (a) amnion (b) placoid scales (c) heart with two complete ventricles (d) swim bladder (e) metamorphosisarrow_forwardTest Your Understanding 11.EVOLUTION LINK Discuss the relationships among the echinoderms and chordates, describing shared derived characters that support grouping these animals as deuterostomes.arrow_forward
- Test Your Understanding 2.Which of the following is/are found in tunicates? (a) dorsal, tubular nerve cord (b) tube feet (c) anal gill slits (d) two pairs of appendages (e) vertebral columnarrow_forwardTest Your Understanding 1.Which of the following is not a shared derived character of echinoderms? (a) water vascular system (b) notochord (c) tube feet (d) pentaradial symmetry in adult (e) endoskeleton of calcium carbonate plates and spinesarrow_forwardWhich of the following is associated with the evolution of the coelom? (a) radial symmetry (b) tube-within-a-tube body plan (c) incomplete metamorphosis (d) bilateral symmetry (e) development of gangliaarrow_forward
- 1. Compare and contrast the efficiency of the different organ systems and adaptations between cnidarians and ctenophorans. Which is more efficient overall and why? 2. What are the major adaptations and characteristics present in free-living flatworms that are absent in their parasitic counterparts? Discuss how these characteristics support their lifestyles.arrow_forwardWhich of the following is not possible? radially symmetrical diploblast diploblastic eucoelomate protostomic coelomate bilaterally symmetrical deuterostomearrow_forwardMatch each structure with its descriptions. _____ radula a. internal skeleton _____ exoskeleton b. external skeleton _____ endoskeleton c. stinging cell of cnidarians _____ cnidocyte d. excretory organ of insects _____ compound eye e. mollusk feeding device _____ tube foot f. larva of annelid or mollusk _____ trochophore g. has many lenses _____ Malpighian tubule h. moves an echinoderm _____ gastrovascular cavity i. digests a planarians foodarrow_forward
- Which group of invertebrates is most closely related to vertebrates? cephalochordates echinoderms arthropods urochordatesarrow_forwardThe symmetry found in animals that move swiftly is ___________ . radial bilateral sequential interruptedarrow_forwardConsulting the modern phylogenetic tree of animals, which of the following would not constitute a clade? deuterostomes lophotrochozoans Parazoa Bilateriaarrow_forward
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