Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. How could the efficiency of food production be improved?
   • The efficiency of food production can be improved by restricting Energy transfer from food animals to the environment.
2. Why are some animals fed high protein foods?
   • Some animals are fed high protein foods to increase growth.
3. Why do some people have ethical objections to some modern intensive farming methods?
   • Some people have ethical objections to some modern intensive farming methods because it reduces variation in plant species that could lead to a crop being wiped out by disease.
4. Give an advantages and disadvantages of modern farming techniques.
   • An advantage of modern farming techniques is increased yield. A disadvantage is a lack of diversity in a crop.
5. Why is it important to maintain fish stock levels in the sea?
   • Fish stock levels are declining. It is important to maintain fish stocks at a level where breeding continues or certain species may disappear altogether in some areas
6. What plays an important part in conservation of fish stocks at a sustainable level?
   • Control of net size and the introduction of fishing quotas play important roles in conservation of fish stocks at a sustainable level
7. What is the most sustainable way of fishing?
   • Use pole and line fishing techniques instead of nets.