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