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
a collection of organisms and materials that interact
only found in forests
the place where animals live
unchanging, fragile systems that are easily damaged
Meter
Kilometer
Centimeter
All of the above
Resilience
Boundaries
Food webs
Scale
Soil
Animals
Dead plants
Sunlight