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