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