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