Meter
Kilometer
Centimeter
All of the above
unchanging, fragile systems that are easily damaged
only found in forests
the place where animals live
a collection of organisms and materials that interact
Boundaries
Food webs
Resilience
Scale
Soil
Sunlight
Dead plants
Animals
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
Conditions an animal needs to grow and reproduce