1. Evolution and Ecology Key Question: What are the benefits and downfalls of competition? 1 Competition

2. Maryland Science Content Standard Explain that within any environment organisms with similar needs may compete with one another for resources. 2

3. Activity Read Chapter 1: Section 4 –Pay special attention to Symbiosis Competition 2

4. Symbiotic Relationships and Competition: Observe and Discuss Watch scenes from: –The Jewels of the Caribbean Identify interactions between animals Create a graphic organizer to show: –Examples of interactions where one organism benefits from the interaction and how –Examples of interactions where one organism gets hurt from the interaction and how –Examples of interactions that are not beneficial or harmful to one of the organisms –Examples of competition between organisms for needs of living things 6

5. Conclusion Explain how the relationships between organisms in an ecosystem can help the populations of each stay stable (in homeostasis). Use evidence from Chapter 1 and the movie to support your response. 8