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