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