DP Biology (first assessment 2025)

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Question 19N.2.HL.TZ0.1f

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.2.HL.TZ0.1f
Level HL Paper 2 Time zone TZ0
Command term State Question number f Adapted from N/A
f.
[Maximum mark: 1]
19N.2.HL.TZ0.1f
(f)

State one reason for having a control group. 

[1]

Markscheme

any reference to comparison ✔

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