| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ2.5 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | List | Question number | 5 | Adapted from | N/A |
Question
What are the most frequently occurring elements in living organisms?
A. calcium, phosphorus, iron and sodium
B. calcium, sodium, nitrogen and phosphorus
C. carbon, phosphorus, oxygen and nitrogen
D. nitrogen, carbon, oxygen and hydrogen
Markscheme
D
Examiners report
N/A
