DP Biology (first assessment 2025)

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Question 19M.1A.SL.TZ1.21

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ1.21
Level SL Paper 1A Time zone TZ1
Command term Deduce Question number 21 Adapted from N/A
21.
[Maximum mark: 1]
19M.1A.SL.TZ1.21

Which is an example of natural selection?

A. A giraffe stretching its neck to reach higher leaves

B. A juvenile bird learning to sing

C. Development of antibiotic resistance in bacteria

D. Selective breeding of tail-less cats

[1]

Markscheme

C

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