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