| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.SL.TZ2.18 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 18 | Adapted from | N/A |
Question
What term can be used to describe clams that eat decaying plant matter?
A. Detritivores
B. Tertiary consumers
C. Saprotrophs
D. Decomposers
Markscheme
A
Examiners report
A number of teachers expressed concern over this question, primarily concerned about an expectation of knowledge of clams. However, from the context of the question, students should have been able to determine that eating decaying matter rather than rotting decaying matter indicates that the clam is a detritivore.
Syllabus sections
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