| Date | November 2013 | Marks available | 1 | Reference code | 13N.1.HL.TZ0.16 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 16 | Adapted from | N/A |
Question
The following shows an energy pyramid.
How is energy lost between the trophic levels?
A. photosynthesis, birth of an organism and digestion
B. respiration, death of an organism and egestion
C. recycling of nutrients, death of an organism and egestion
D. respiration, birth of an organism and digestion
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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