Ch. 2-Energy & Matter in Ecosystems

• Energy and matter flow through an ecosystem
• Earth's ecosystems tend to remain stable as a result of a dynamic equilibrium in which matter and energy change form through the activities of living things

food chain - 
food web - 
carbon dioxide-oxygen cycle - 
cell respiration - 
water cycle -
evaporation -
condensation -
proteins -
nitrogen cycle -
How Does Energy Flow in an Ecosystem?
    Read "The Cycle of Food"

How Is Matter Cycled in an Ecosystem?
    Read "The Carbon Dioxide-Oxygen Cycle"
    Read "The Water Cycle"
    Read "Recycling Waste"
    Read "The Nitrogen Cycle"