4.7 Energy efficiency

http://www.youtube.com/watch?v=uEqQAITpnbc&feature=related

• Energy pyramid - Producer 100% > Primary 10% > Secondary 1% of the producer
• Losses - Energy is lost due to growth, reparation and movement of the organism
• Sometimes the energy are excreted due to it being indigestible
• Owl gets 10% of the mouse's energy and 1% of the grass the the mouse digested before
• Microorganisms break down the remains of the deceased organisms in the end
• Cycle repeats