only found in forests
a collection of organisms and materials that interact
the place where animals live
unchanging, fragile systems that are easily damaged
Animals
Soil
Sunlight
Dead plants
Kilometer
Centimeter
Meter
All of the above
Cycling of nitrogen between soil, water, and the atmosphere
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
Scale
Boundaries
Resilience
Food webs