The document provides an overview of key ecological concepts, focusing on material cycling, ecosystem organization, and environmental factors. It covers the roles of microorganisms in nutrient cycles, the importance of water and carbon cycles, and the impact of abiotic and biotic factors on ecosystems.
- Microorganisms play crucial roles in nitrogen and carbon cycles
- Water cycle distributes fresh water and maintains habitats
- Carbon cycle allows movement of carbon between atmosphere, biomass, oceans, and soil
- Abiotic and biotic factors influence ecosystem dynamics
- Ecosystem organization ranges from individual organisms to complex communities