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