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