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