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