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