Describe and interpret dynamic changes in stable systems.
Organisms and Cells
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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 how natural processes (e.g., seasonal change, catastrophic events, habitat alterations) impact the environment over time.
Relate geochemical cycles to the conservation of matter.
Relate geochemical cycles to conservation of matter.