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