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