1.4 Energy in Ecosystems

• The majority of energy is lost when it is transferred to one level of the food chain to another. How is it lost?

  - heat

  - movement

  - undigested material
• Which type of organism is found at the base of a pyramid of numbers or pyramid of energy?

  The producer
• Which type of organism is found at the apex (tip) of a pyramid of numbers or pyramid of energy?

  The top level consumer
• how much of the energy is passed on at each stage in a food web or a food chain?

  10%