DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ2.18

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ2.18
Level SL Paper 1A Time zone TZ2
Command term Question number 18 Adapted from N/A
18.
[Maximum mark: 1]
23M.1A.SL.TZ2.18

Which statement best describes how evolution occurs?

A.  Species which produce the most offspring are favoured by natural selection.

B.  Mutations in somatic cells are passed on to offspring.

C.  Natural selection decreases the frequency of unfavourable characteristics.

D.  Changes in species lead towards greater complexity over time.

[1]

Markscheme

C

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