Investigate Records

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Unit B: Interactions Among Living Things

Chapter 4: Ecosystems, Communities, and Biomes

• Lesson 1: Look at Life
• Lesson 2: Compare Biomes
• Lesson 3: Model Energy Flow

Chapter 5: Life in Ecosystems

• Lesson 1: Worm and Fish Habitats
• Lesson 2: Limits to Growth
• Lesson 3: Rising Sea Level