In the food web shown: Heather -> Rabbit -> Fox, only a small percentage of the Sun’s energy captured by the heather is eventually incorporated into the body tissues of the fox. Explain what happens to the rest of the energy captured by the heather.

To get all FIVE marks for this question, there needs to be FIVE clear, balanced and detailed explanations.

- Respiration releases energy.  

• Some energy is lost in animals through waste materials.

• Some energy is used in maintenance or repair.

• Some energy is used for movement.

• Energy is lost as heat to surroundings.

For some subjects, short answer questions that are worth up to 4 or 5 marks can be answered with bullet points. Ask your teacher whether bullet-point answers are appropriate in their subject. Before you answer any question, look at how many marks are available for it. If there are, for example, 3 marks, then you must make 3 points to secure all 3 marks.