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