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Biology: Concepts and Investigations 4th Edition

Biology: Concepts and Investigations (4th Edition)

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Book Edition4th Edition
Author(s)Hoefnagels
ISBN9780078024207
PublisherMcGraw-Hill, Inc.
SubjectBiology
Section 21.1: Animals Live Nearly Everywhere
Mastering Concepts
Section 21.2: Sponges Are Simple Animals That Lack Differentiated Tissues
Mastering Concepts
Section 21.3: Cnidarians Are Radially Symmetrical, Aquatic Animals
Mastering Concepts
Section 21.4: Flatworms Have Bilateral Symmetry and Incomplete Digestive Tracts
Mastering Concepts
Section 21.5: Mollusks Are Soft, Unsegmented Animals
Mastering Concepts
Section 21.6: Annelids Are Segmented Worms
Mastering Concepts
Section 21.7: Nematodes Are Unsegmented, Cylindrical Worms
Mastering Concepts
Section 21.8: Arthropods Have Exoskeletons and Jointed Appendages
Mastering Concepts
Section 21.9: Echinoderm Adults Have Five-Part, Radial Symmetry
Mastering Concepts
Section 21.10: Most Chordates Are Vertebrates
Mastering Concepts
Section 21.11: Tunicates and Lancelets Are Invertebrate Chordates
Mastering Concepts
Section 21.12: Hagfishes and Lampreys Are Craniates Lacking Jaws
Mastering Concepts
Section 21.13: Fishes Are Aquatic Vertebrates with Jaws, Gills, and Fins
Mastering Concepts
Section 21.14: Amphibians Lead a Double Life on Land and in Water
Mastering Concepts
Section 21.15: Reptiles Were the First Vertebrates to Thrive on Dry Land
Mastering Concepts
Section 21.16: Mammals Are Warm, Furry Milk-Drinkers
Mastering Concepts
Section 21.17: Investigating Life: Sponges Fill Holes in Animal Evolution
Mastering Concepts
End of Chapter
Multiple Choice Questions
Write It Out
Pull It Together

Chapter 21, End of Chapter, Multiple Choice Questions, Exercise 4

Page 458

Verified Answer and Explanation

Here is a tip:

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Explanation

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Page 458

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