Explore Life? -- What Makes Up the Variety of Life Around You? -- Why Is It Important to Compare Organisms? -- How Do Scientists Classify Plants? -- How Do Scientists Classify Animals? -- What Happens When Biodiversity is Lost? -- Why Do Members of the Same Species Vary? -- What is the Importance of Diversity within and among Communities? -- How Do Species' Relationships Help Biodiversity? -- Think Tank: Designing a Healthy Waterfront.