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Question 17N.1.SL.TZ0.21

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.1.SL.TZ0.21
Level SL Paper 1 Time zone TZ0
Command term Identify Question number 21 Adapted from N/A
21.
[Maximum mark: 1]
17N.1.SL.TZ0.21

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

[1]

Markscheme

B

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