DP Biology (first assessment 2025)

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Question 20N.1B.SL.TZ0.2a

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Date November 2020 Marks available [Maximum mark: 2] Reference code 20N.1B.SL.TZ0.2a
Level SL Paper 1B Time zone TZ0
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 2]
20N.1B.SL.TZ0.2a
(a)

State the independent and dependent variables in this experiment.

Independent: 

Dependent: 

[2]

Markscheme

a. Independent: mass;

b. Dependent: (vertical) diameter/length;

Do not accept elasticity

Examiners report

The experiment described an investigation to compare the elasticity of arteries and veins. In (a) the most common error was to reverse the correct responses of mass and diameter.

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