C2 l3
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Scott Foresman Unit A Chapter 2 Lesson 3

Scott Foresman Unit A Chapter 2 Lesson 3

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C2 l3 Presentation Transcript

  • 1. Chapter 2 - Lesson 3: How Do Fish, Frogs, and Mammals Grow? Study GuideVocabulary:1. amphibian - an animal with a backbone thatlives part ofits life cycle in water and pat on land.2. gills - the parts of fish and tadpoles that areused to takein oxygen from water.3. tadpole - a very young frog or toad.
  • 2. Main Ideas:· Frogs are amphibians. Most amphibians live part oftheir lives inwater and part on land.· The life cycle of a frog has the following stages: egg,youngtadpole, older tadpole, adult frog.· A mammal is characterized by fur or hair and milk-producingmammary glands. Mammals also have a backbone andlungs.· Mammal babies stay with one or both of their parentsfor a period oftime that ranges from a few months to many years.· Mammal babies begin as eggs.· Different kinds of mammals have different life cycles.The typicalmammal life cycle includes egg, embryo, baby, younganimal andadult.
  • 3. Chapter 2 - Lesson 3: How Do Fish, Frogs, and Mammals Grow? QUICK QUIZ #11. What are amphibians?2. How is a tadpole like a fish?H.O.T. Put the following stages in the life cycle ofa frog into the correct sequence: adult, oldertadpole, egg, young tadpole.
  • 4. Chapter 2 - Lesson 3: How Do Fish, Frogs, and Mammals Grow? Raise Questions1. Which animals in this chapter have abackbone?H.O.T. Which characteristics of mammals do dogshave?
  • 5. Chapter 2 - Lesson 3: How Do Fish, Frogs, and Mammals Grow? QUICK QUIZ #21. What is a mammal?2. Are all mammals covered with fur?H.O.T. Apply your knowledge of mammals to listten examples of mammals.
  • 6. Chapter 2 - Lesson 3: How Do Fish, Frogs, and Mammals Grow? Raise Questions1. Where do mammal embryos usually grow?2. What happens to mammal babies after they areborn?H.O.T. What do all adult animals have incommon?
  • 7. Chapter 2 - Lesson 3: How Do Fish, Frogs, and Mammals Grow? Page A471. How is the life cycle of a fish different from thelife cycle of a frog?2. What are the stages in the mammal life cycle?3. Sequencing - use what you know about lifecycles of frogs to put these steps in the correctorder: breathe with gills; breathe with lungs;hatch from eggs.