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