2.0 ECOSYSTEMS
DEMONSTRATE KNOWLEDGE OF ORGANISMS LIVING IN SPECIFIC ECOSYSTEMS
2.1		Consumers, producers, and decomposers
2.2		Continual change in systems
2.3		Food chains
2.4		Carbon dioxide-oxygen cycle
2.5		Water cycle
2.6		Nitrogen cycle
2.7		Major biomes on Earth
2.8		Water ecosystems
2.9		Biodiversity