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