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