Energy in ecosystems

• Energy transferring from one level to another majority of the energy is lost due to heat, movement and undigested material
• Only a small quantity of energy is used for growth and is therefore available at the next level in the food chain
• Pyramid of numbers


  Is a diagram which shows the number of organisms present at each stage of the food chain
• Pyramid of energy

  Represents the amount of energy which is present at each stage of a food chain