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