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