1. To return to the chapter summary click Escape or close this document. Chapter Resources Click on one of the following icons to go to that resource. life.msscience.com Image Bank Foldables Video Clips and Animations Standardized Test Practice Chapter Review Questions Chapter Summary

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3. To return to the chapter summary click Escape or close this document. Click on individual thumbnail images to view larger versions. Image Bank

4. To return to the chapter summary click Escape or close this document. Image Bank To transfer images to your own power point follow the following steps: Open the “Resource” file from the CD-ROM disc – view the file in the “normal view” or “slide sorter view” mode - go to slide #2 – from there you can click through the images and follow these instructions. Click once on the image. Copy the image Go to your own power point document Paste the image. Transfer Images

5. To return to the chapter summary click Escape or close this document. Image Bank Ptarmigans

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30. To return to the chapter summary click Escape or close this document. Foldables Birds and Mammals Make the following Foldable to help you organize information about the behaviors of birds and mammals.

31. To return to the chapter summary click Escape or close this document. Foldables Fold one piece of paper widthwise into thirds.

32. To return to the chapter summary click Escape or close this document. Foldables Fold down 2.5 cm from the top. (Hint: From the tip of your index finger to your middle knuckle is about 2.5 cm.)

33. To return to the chapter summary click Escape or close this document. Foldables Fold the rest into fifths.

34. To return to the chapter summary click Escape or close this document. Foldables Unfold, lay the paper lengthwise, and draw lines along the folds. Label your table as shown.

35. To return to the chapter summary click Escape or close this document. Foldables As you read the chapter, complete the table describing the behaviors of birds and mammals. Make a Table

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37. To return to the chapter summary click Escape or close this document. 1 1 Birds are endothermic animals that are covered with feathers and lay eggs. Birds Adaptations that enable most birds to fly include wings; feathers; a strong, light-weight skeleton; and efficient body systems. Reviewing Main Ideas Birds lay eggs enclosed in hard shells. All bird’s eggs are incubated until they hatch.

38. To return to the chapter summary click Escape or close this document. 2 2 Mammals are endothermic animals with fur or hair. Mammals Mammary glands of female mammals can produce milk. Reviewing Main Ideas Mammals have teeth that are specialized for eating certain foods. Herbivores eat plants, carnivores eat meat, and omnivores eat plants and meat.

39. To return to the chapter summary click Escape or close this document. There are three groups of mammals. Monotremes lay eggs. Most marsupials have pouches for the development of their young. Placental offspring develop within a uterus and are nourished through a placenta. 2 2 Mammals Reviewing Main Ideas Mammals are important in maintaining balance in the environment.

40. To return to the chapter summary click Escape or close this document. Chapter Review Question 1 Would this feather be more important for flight or insulation for a bird?

41. To return to the chapter summary click Escape or close this document. Chapter Review Answer This feather is a contour feather and is most important for flight. It is strong and lightweight.

42. To return to the chapter summary click Escape or close this document. Question 2 Which of the following correctly shows the order of the bird’s digestive organs that food passes through after it leaves the bird’s mouth? A. crop, stomach, gizzard, intestine B. gizzard, crop, stomach, intestine C. stomach, gizzard, crop, intestine D. stomach, intestine, crop, gizzard Chapter Review

43. To return to the chapter summary click Escape or close this document. Answer The correct answer is A. Food first passes into the crop where it is stored before it passes to the stomach. It then is ground in the gizzard and digestion is completed in the intestine. Chapter Review

44. To return to the chapter summary click Escape or close this document. Chapter Review Question 3 As humming birds feed on the nectar of flowers, what important role in nature may they play for these plants? Humming birds may pollinate the flowers. As they feed on the nectar, pollen collects on their feathers and is passed to the next flowers that they visit. Answer

45. To return to the chapter summary click Escape or close this document. Question 4 What is the function of the modified hairs called spines that cover a hedgehog? A. used to collect food B. used to keep them warm C. used to protect them from predators D. used to sense their environment Chapter Review

46. To return to the chapter summary click Escape or close this document. Answer The answer is C. Spines are modified hairs that offer protection from predators. Mammals do not use hair to capture their food. Chapter Review

47. To return to the chapter summary click Escape or close this document. Chapter Review Question 5 What is one importance of the microorganisms that live in the digestive system of some mammals? Microorganisms that live in the digestive system of some mammals help break down the material eaten by the mammal. Without these microbes they could not digest their food. Answer

48. To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 1 Yelena prepared a table to compare and contrast some of the characteristics of birds and mammals. Which characteristic in Yelena’s table has an incorrect answer? CharacteristicBirdsMammals A. Are endothermsYes B. Hatch young from eggsYesNo C. Have teethNoYes D. Produce milk for youngNoYes

49. To return to the chapter summary click Escape or close this document. Standardized Test Practice A. Characteristic A; the answer for mammals should be no B. Characteristic B; the answer for mammals should be sometimes C. Characteristic C; the answer for mammals should be sometimes D. Characteristic D; the answer for mammals should be no

50. To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is B. Although most mammals give birth to live young, the answer for the characteristic about hatching young from eggs should be “sometimes” since monotremes are mammals whose young hatch from eggs.

51. To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 2 How does air moving across the curved shape of a bird’s wing generate lift and help it to fly?

52. To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 2 A. Air moves more slowly across the bottom. B. Air moves more slowly across the top. C. Air pushes up on the bottom. D. Air pushes down on the top.

53. To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The correct answer is A. Slow moving air has greater pressure and thus results in the upward push called lift.

54. To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 3 After observing the large, well-developed molars in this diagram, how would you classify the diet of this animal? A. carnivore B. herbivore C. nectarivore D. omnivore

55. To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is B. The large well-developed molars of this animal indicate that it uses its teeth to grind the tough fibers in plants.

56. To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 4 What organ is used by the embryos of some mammals to absorb oxygen and food from the mother’s blood for use by the developing embryo? A. crop B. mammary gland C. placenta D. umbilical cord

57. To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The correct answer is C. The placenta develops from tissues of the embryo and tissues that line the uterus. The umbilical cord connects the embryo to the placenta.

58. To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 5 Since air flows in only one direction in the lungs of birds, they receive air with oxygen _____. A. only when they exhale B. only when they fly C. only when they inhale D. when they inhale and when they exhale

59. To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is D. Birds receive air with oxygen when they inhale and when they exhale.

60. To return to the chapter summary click Escape or close this document. To advance to the next item or next page click on any of the following keys: mouse, space bar, enter, down or forward arrow. Click on this icon to return to the table of contents Click on this icon to return to the previous slide Click on this icon to move to the next slide Click on this icon to open the resources file. Help Click on this icon to go to the end of the presentation.

61. To return to the chapter summary click Escape or close this document. End of Chapter Resources File