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