Kilometer
All of the above
Meter
Centimeter
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
Flow of energy from one organism to another in a food web
Scale
Resilience
Food webs
Boundaries
Animals
Soil
Dead plants
Sunlight
the place where animals live
only found in forests
unchanging, fragile systems that are easily damaged
a collection of organisms and materials that interact