| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.SL.TZ0.21 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Identify | Question number | 21 | Adapted from | N/A |
Question
What causes variation within a population?
A. Fertilization and change in the environment
B. Fertilization and mutation
C. Mutation and evolution
D. Evolution and adaptive radiation
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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