| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ2.21 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 21 | Adapted from | N/A |
Question
Which of the following ecological units includes abiotic factors?
A. A community
B. An ecosystem
C. A population
D. A trophic level
Markscheme
B
Examiners report
N/A
Syllabus sections
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