Describe and explain the physical factors that affect a stream and the organisms living there.
Watersheds and Wetlands
Describe the physical characteristics of a stream and determine the types of organisms found in aquatic environments.
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Analyze the relationships among components of an ecosystem.
Describe how changes in physical and biological indicators (e.g., soil, plants, animals) of water systems reflect changes in these systems (e.g. changes in bloodworm populations reflect changes in pollution levels in streams).
Explain the biotic (i.e., plant, animal, and microbial communities) and abiotic (i.e., soil, air, temperature, and water) components of an ecosystem and their interaction.
Explain the dynamics of a wetland ecosystem.
Examine and explain what happens to an ecosystem as biological diversity changes.