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Date May 2019 Marks available 1 Reference code 19M.1.SL.TZ2.20
Level Standard level Paper Paper 1 Time zone Time zone 2
Command term Deduce Question number 20 Adapted from N/A

Question

What is required for natural selection to occur?

I. Acquired characteristics

II. Advantageous characteristics

III. Genetic variation

A. I only

B. I and III only

C. II and III only

D. I, II and III

Markscheme

C

Examiners report

The answers to this question show poor knowledge of the requirements for natural selection, as many candidates believed acquired characteristics are needed.

Syllabus sections

Core » Topic 5: Evolution and biodiversity » 5.1 Evidence for evolution
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Core » Topic 5: Evolution and biodiversity
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