CAMPBELL BIOLOGY V.2(BHCC>CUSTOM<)
18th Edition
ISBN: 9781323655573
Author: Urry
Publisher: PEARSON C
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Chapter 33.3, Problem 3CC
MAKE CONNECTIONS Ø Explain how the molluscan foot in gastropods and the excurrent siphon in cephalopods represent examples of descent with modrfication (see Concept 22.2).
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Chapter 33 Solutions
CAMPBELL BIOLOGY V.2(BHCC>CUSTOM<)
Ch. 33.1 - Prob. 1CCCh. 33.1 - Prob. 2CCCh. 33.2 - Compare and contrast the polyp and medusa forms of...Ch. 33.2 - VISUAL SKILLS Use the cnidarian life cycle...Ch. 33.2 - MAKE CONNECTIONS Many new animal body plans...Ch. 33.3 - Prob. 1CCCh. 33.3 - Prob. 2CCCh. 33.3 - MAKE CONNECTIONS Explain how the molluscan foot...Ch. 33.4 - Prob. 1CCCh. 33.4 - Describe two adaptations that have enabled insects...
Ch. 33.4 - MAKE CONNECTIONS Historically, annelids and...Ch. 33.5 - Prob. 1CCCh. 33.5 - WHAT IF? The insect Drosophila melanogaster and...Ch. 33.5 - MAKE CONNECTIONS Describe how the features and...Ch. 33 - Lacking tissues and organs, how do soonges...Ch. 33 - Describe the cnidarian body plan and its two major...Ch. 33 - is the lophotrochozoan clade united by unique...Ch. 33 - Describe some ecological roles of nematodes and...Ch. 33 - You've read that echinoderms and chordates are...Ch. 33 - A land snail, a clam and an octopus all share...Ch. 33 - Prob. 2TYUCh. 33 - The water vascular system of echinoderms (A)...Ch. 33 - Prob. 4TYUCh. 33 - In Figure 33.2, which two main clades branch from...Ch. 33 - MAKE CONNECTIONS In Figure 33.8, assume that the...Ch. 33 - Evolution connection Interpret thf data Draw a...Ch. 33 - Prob. 8TYUCh. 33 - Prob. 9TYUCh. 33 - SYNTHESIZE YOUR KNOWLEDGE Colleclively, do these...
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- Test 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_forwardExplain how the molluscan foot in gastropods and the excurrent siphon in -cephalopods represent examples of descent with -modificationarrow_forwardEvol question: If the common ancestor of Cnidarians were an open-ocean jellyfish, what would you infer regarding the evolutionary trends in the relative importance of the polyp and medusa stages?arrow_forward
- Test Your Understanding 14. PREDICT What problems would be faced by a terrestrial animal having gills instead of lungs?arrow_forward1. Describe the structure and composition of the radula. Which molluscan classes use this structure for feeding? Describe the morphology of the radular teeth in gastropod species that use the radula to scrape algae, rasp holes in hard-shelled prey, and harpoon their prey.arrow_forwardDiscuss Concepts Whentetrapods first ventured onto the land, what new selection pressures did they face? What characteristics might have fostered the success of these animals as they made the transition from aquatic to terrestrial habitats?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_forwardRegarding bivalve burrowing: 1) If the penetration anchor (PA) is formed and the circular muscle of the foot contract, what would be the consequence? 2) What happens when the adductor muscles contract?arrow_forward1. Classify jellyfish and ant based on the following characteristics: d) Mechanism of coelom formation, if coelomate e) the origin of mouth? f) symmetry of cleavage? g) cleavage pattern, determinate or indeterminate? h) protostome or deuterostome?arrow_forward
- Briefly describe characteristics of the hypothetical ancestral mollusc, and tell how each class of molluscs (Caudofoveata, Solenogastres, Polyplacophora, Monoplacophora, Gastropoda, Cephalopoda, Bivalvia, Scaphopoda) differs from the ancestral condition with respect to each of the following: shell, radula, foot, mantle cavity and gills, circulatory system, and head.arrow_forwardQ1 KIDNEY APPEARS FIRST TIME IN WHICH PHYLUM?? Q2 IN A TRIPLABLASTIC ANIMAL AND DON'T HAVE BILATERAL SYMMETRY ARE OPTIONS À. ECHINODERM B.CNEDERIA C.MOLLUSC D.PORIFERA E. ARTHROPODarrow_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_forward
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