Chapter 32 Organizer Mammals Refer to pages 4T-5T of the Teacher Guide for an explanation of the National Science Education Standards correlations. Teacher Classroom Resources Activities/FeaturesObjectivesSection MastersSection TransparenciesReproducible Reinforcement and Study Guide, pp. 141-142 L2 Section Focus Transparency 77 L1 ELL Section 32.1 1. Distinguish mammalian characteristics. MiniLab 32-1: Anatomy of a Tooth, p. 869 Section 32.1 2. Explain how the characteristics of mam- Problem-Solving Lab 32-1, p. 870 Concept Mapping, p. 32 L3 ELL Basic Concepts Transparency 58 L2 ELL Mammal mals enable them to adapt to most habi- MiniLab 32-2: Mammal Skeletons, p. 871 Mammal Critical Thinking/Problem Solving, p. 32 L3 Basic Concepts Transparency 59 L2 ELL Characteristics tats on Earth. Inside Story: A Mammal, p. 872 Characteristics BioLab and MiniLab Worksheets, pp. 143-144 L2 Reteaching Skills Transparency 47 L1P ELL National Science Education Careers in Biology: Animal Trainer, p. 873 Laboratory Manual, pp. 229-238P L2 P Standards UCP.1-5; A.1, A.2; Internet BioLab: Domestic Dogs Wanted, Content Mastery, pp. 157-158, 160 L1 P B.2; C.3, C.5, C.6 (1 session, p. 882 P Tech Prep Applications, pp. 41-42 L2 P P 1 block) Biology & Society: Do we need zoos? p. 884 P LS P LS P LS Reinforcement and Study Guide, pp. 143-144 L2 Section Focus Transparency 78 L1P ELL Section 32.2 LS Section 32.2 3. Distinguish among the three groups of Focus On Placental Mammals, p. 876 BioLab and MiniLab Worksheets,LS pp. 145-146 LSL2P LS living mammals. Diversity of Content Mastery, pp. 157, 159-160PL1 LS 4. Compare reproduction in egg-laying, LS P Diversity of Mammals Mammals LS P National Science Education pouched, and placental mammals. LS P Standards UCP.1-5; C.3, C.5, P LS C.6; D.3; F.3-6; G.1-3 (3 ses- Assessment Resources LS Additional Resources sions, 1/ block) P LS 2 Chapter Assessment, pp. 187-192 Spanish Resources ELL LS P MindJoggerAssessment Videoquizzes Resources AdditionalEnglish/Spanish AudiocassettesResources ELL P LSLS Performance Assessment in the Biology Classroom Cooperative Learning in the Science Classroom COOP LEARN Need Materials? Contact Carolina Biological Supply Company at 1-800-334-5551 KeyKey toto TeachingTeaching StrategiesStrategies or at http://www.carolina.com Alternate Assessment in the Science Classroom P LessonLS Plans/Block SchedulingP L1 Level 1 activities should be appropriate Computer Test Bank LS P MATERIALS LIST for students with learning difficulties. BDOL Interactive CD-ROM, Chapter 32 quiz L2 Level 2 activities should be within the BioLab Alternative Lab LS ability range of all students. LS LS p. 882 Internet access p. 870 mouse, terrarium, sawdust or L3 Level 3 activities are designed for above- LS sand, assorted objects, timer or clock MiniLabs average students. with second hand ELL ELL activities should be within the ability p. 869 microscope, prepared slide of Teacher’s range of English Language Learners. human tooth cross section, paper, pencil Quick Demos COOP LEARN Cooperative Learning activities Corner p. 871 owl pellet, paper towel, for- p. 868 microscope, microscope slides, P are designed for small group work. The following multimedia resources are available from Glencoe. ceps, microscope, microscope slide, cov- coverslips, dog hair, cat hair, glycerol P P These strategies represent student prod- Products Available From Book Biology: The Dynamics of Life erslip, dropper, water p. 875 animal field guides P ucts that can be placed into a best-work Glencoe National Geographic Book of CD-ROM ELL P To order the following products, Mammals portfolio. BioQuest: Biodiversity Park call Glencoe at 1-800-334-7344: Video LS These strategies are useful in a block Video: Primate Charactersistics LS CD-ROM Wild Survivors: Camouflage and LS scheduling format. Video: Beaver Mammals: A Multimedia Mimicry P Video: Dolphin LS Encyclopedia Video: Shrew Videodisc Index to National Video: Bat STV: Animals Geographic Magazine Video: Elephant The following articles may be LS Video: Elephant Behavior Products Available From used for research relating to this Video: Duck-BilledP Platypus National Geographic Society chapter: To order the following products, “Between Monterey Tides,” by Videodisc Program call National Geographic Society Rick Gore, February 1990. Duck-Billed Platypus at 1-800-368-2728: LS The Infinite Voyage The Keepers of Eden 866A 866B ChapterChapter 3232 ChapterChapter SECTION PREVIEW Section Objectives Section 32.1 Distinguish mam- 32.1 Mammal Characteristics malian characteristics. ETTING TARTED EMO Mammals Explain how the char- GETTING STARTED DEMO 32 acteristics of mammals Prepare enable them to adapt to Visual-Spatial Show stu- most habitats on Earth. Key Concepts dents a mouse, rat, gerbil, Vocabulary or hamster. Offer the animal What You’ll Learn ave you ever read a children’s gland Mammalian characteristics such diaphragm I story in which the children as hair, endothermy, a muscular food, and ask students to You will distinguish the mammary gland characteristics of mammals. Hfeared a big, bad wolf? The wolf diaphragm, mammary glands, observe in groups its behavior I You will compare and con- characters in stories like Little Red for five minutes. Ask students and intelligence are presented. trast three groups of living Riding Hood or The Three Little Pigs to list the adaptations of the Adaptations for obtaining and P mammals and examine their are usually portrayed as evil, cunning, animal to its environment. relationships to their ancient consuming food are discussed for ancestors. and vicious killers. But real wolves kill specific mammals. prey in order to eat, as all predators Why It’s Important must. Wolves prey mostly on small Planning Mammals play a major role animals such as rabbits and LS I Theme Development in most ecosystems on Earth pikas, rodents such as mice and Borrow or buy a small mam- because they are at the top of mal such as a mouse for the The theme of unity within voles, and occasionally deer or many food chains. Humans are Getting Started Demo. diversity is obvious in the discus- mammals, so studying mammal elk. Both wolves and their I Obtain hair from a variety of sions of the traits all mammals characteristics provides infor- prey are mammals. Wolf eating prey (above) mammals, and gather slides, share. The theme of homeostasis mation about humans as well. and a pika (inset) coverslips, and glycerol for the is woven throughout the chapter Quick Demo. via a discussion of mammal GETTING STARTED I Obtain a mouse, a terrarium endothermy. This mammalian Mammalian Features with sand, and small objects trait is one of the characteristics Examine a mammal and make a for burying for the Alternative that enables mammals to inhabit a list of three structural features Lab. wide variety of habitats. unique to mammals. What What Is a Mammal? birds’ feathers probably evolved from physical structures do mammals scalelike structures such as those of use for obtaining their food? Mammals, like birds, are endo- reptiles. Mammalian hair, made out therms. The ability to maintain a fairly of keratin, is also thought to have To find out constant body temperature enables evolved from scales. The structure of 1 Focus more about WORD Origin If time does not permit teach- mammals, visit the Glencoe mammals to live in almost every pos- hair provides insulation and water- ing the entire chapter, use the Science Web Site. sible environment on Earth. Polar proofing and thereby conserves body mammal Bellringer BioDigest at the end of the www.glencoe.com/sec/science bears of the Arctic, tigers in tropical heat. If you have ever worn a wool From the Latin Before presenting the lesson, word mamma, unit as an overview. jungles, and dolphins that roam the sweater made from the hair of a sheep, display Section Focus Trans- Atlantic Ocean are able to live in you know how warm wool can be on meaning “breast.” A mammal is an parency 77 on the overhead pro- these varied environments because a cold day. As shown in Figure 32.1, animal with hair jector and have students answer they are endotherms. Mammals also hair also serves other functions. that feeds its young the accompanying questions. African elephants live in share other important characteristics. Although hair helps retain body with milk from Resource L1 ELL Resource social groups and have heat, mammals also have adaptations mammary glands. ManagerManager strong family ties. A Mammals have hair that aid in cooling off the body when cheetah and her cubs Have you ever heard someone it gets too warm. Mammals cool off Section Focus Transparency 77 rest after eating the prey Scales, Feathers, complain about a pet that is shedding by panting and through the action of TransparencyP 77 SECTION FOCUS she has killed. Elephants Hair Use with Chapter 32, and Master L1 ELL Section 32.1 and cheetahs share other its hair? There’s no doubt that such a sweat glands. Panting releases water characteristics that pet is a mammal because only mam- from the lungs, which results in a classify both as mammals. mals have hair. You have read that loss of body heat. Sweat glands help P LS 866 867 MAMMALS 32.1 MAMMAL CHARACTERISTICS P AssessmentAssessment PlannerPlanner LS Look for the following logos for strategies that emphasize different learning modalities. P Portfolio Assessment Alternative Lab, TWE, pp. 870-871 Multiple Kinesthetic Reteach, p. 881 Linguistic Biology Journal, Portfolio, TWE, pp. 868, 874, 877 Assessment, TWE, p. 868 LS Learning pp. 868, 875, 876; Check for MiniLab, TWE, pp. 869, 871 Knowledge Assessment Visual-Spatial Quick Demo, Understanding, p. 873 Assessment, TWE, pp. 873, 881 Section Assessment, SE, pp. 873, 881 1 Identify the mammal in this picture.