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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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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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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- Which 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_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_forwardWhich of the following is not possible? radially symmetrical diploblast diploblastic eucoelomate protostomic coelomate bilaterally symmetrical deuterostomearrow_forward
- Which of the following is not contained in phylum Chordata? Cephalochordata Echinodermata Urochordata Vertebrataarrow_forwardConsulting the modern phylogenetic tree of animals, which of the following would not constitute a clade? deuterostomes lophotrochozoans Parazoa Bilateriaarrow_forwardWhich organ system is absent in flatworms (phylum Platyhelminthes)? a. nervous system b. reproductive system c. circulatory system d. digestive system e. excretory systemarrow_forward
- What is the major morphological innovation seen in annelid worms? a. a complete digestive system b. image-forming eyes c. a respiratory system d. an open circulatory system e. body segmentationarrow_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 group of invertebrates is most closely related to vertebrates? cephalochordates echinoderms arthropods urochordatesarrow_forward
- How does segmentation enhance annelid locomotion? Segmentation creates repeating body structures so the entire organism functions in synchrony Segmentation allows specialization of different body regions Neural segmentation allows annelids to localize sensations Muscle contractions can be localized to specific regions of the body to coordinate movement.arrow_forwardWhich of the following is not true of Acanthostega? It was aquatic It had gills It had four limbs It laid shelled eggs.arrow_forwardMembers of Chondrichfhyes are thought to be descended from fishes that had. a cartilaginous skeleton a bony skeleton mucus glands slime glandsarrow_forward
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