Cycling of nitrogen between soil, water, and the atmosphere
Living and non-living things in an area and their interactions
Flow of energy from one organism to another in a food web
Conditions an animal needs to grow and reproduce
Food webs
Scale
Boundaries
Resilience
Centimeter
All of the above
Meter
Kilometer
Soil
Animals
Sunlight
Dead plants
a collection of organisms and materials that interact
unchanging, fragile systems that are easily damaged
only found in forests
the place where animals live