Fig. 4.1 shows the relationships between a number of organisms living together in a South American rainforest. [Figure 4.1]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2017). The mark or mark type is shown in brackets.

1. [4] Top line (LHS) humans AW / nut collectors +
2. [4] (RHS) jaguars ;
3. [4] Middle line (LHS) bees
4. [4] +
5. [4] (RHS) agoutis ;
6. [4] Lower line (LHS) orchids
7. [4] +
8. [4] (RHS) (brazil nut) tree ;
9. [4] 4 four arrow heads drawn + all pointing upwards ;
10. [2] animal;
11. [2] agoutis / humans AW/nut collectors;
12. [6] 1 less nectar;
13. [6] 2 male bees + lack scent;
14. [6] 3 female bees + not attracted;
15. [6] 4 less reproduction of bees ;
16. [6] 5 less pollination + of trees ;
17. [6] 6 less trees;
18. [6] 7 less nut/fruit production;
19. [6] 8 loss of jobs (for humans) / negative economic impact AW ;
20. [6] 9 less food for agoutis ;
21. [6] 10 death/reduced population + of agoutis OR agoutis seek other food ;
22. [6] 11 less food for jaguars ;
23. [6] 12 death/reduced population + of jaguars OR jaguars seek other food ;