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