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