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