| Date | May 2010 | Marks available | 1 | Reference code | 10M.1.SL.TZ2.19 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Predict | Question number | 19 | Adapted from | N/A |
Question
What will happen to the food web above if the sea otter disappears?
A. Large fish increase and sea urchins decrease.
B. Abalones increase and sharks increase.
C. Sea urchins increase and kelps decrease.
D. Sea stars decrease and sharks increase.
Markscheme
C
Examiners report
These were second and third easiest question of the exam. This means they were not good discriminators, as almost every candidate had the correct answer. In response to the G2 comments, obviously the candidates had no trouble with the food web.
