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