DP Biology (first assessment 2025)

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Question 19M.1A.SL.TZ2.20

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ2.20
Level SL Paper 1A Time zone TZ2
Command term Deduce Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
19M.1A.SL.TZ2.20

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

[1]

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.

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