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Unit B: Living Things in Their Environment

Chapter 4: Survival of Living Things

Concept

• Survival of Living Things

Reading Skill

• Lesson 1: What Are the Needs of Living Things?
• Lesson 2: How Do Living Things Compete
• Lesson 3: How Do Adaptations Help Living Things?
• Lesson 4: What Happens When Habitats Change?

Chapter 5: Food Chains

Concept

• Food Chains

Reading Skill

• Lesson 1: How Do Living Things Get Energy?
• Lesson 2: What Is a Food Chain?
• Lesson 3: What Are Some Different Food Chains?