DP Biology (first assessment 2025)

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Question 22N.2.HL.TZ0.a

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.2.HL.TZ0.a
Level HL Paper 2 Time zone TZ0
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 1]
22N.2.HL.TZ0.a

State the relationship between BCH and brain mass of shrews.

[1]

Markscheme

positive correlation/the greater the BCH the greater the brain mass;

No mark for ‘positive relationship’ or for directly proportional

Examiners report

Most candidate described the relationship shown on the graph as a positive correlation. Some referred to it incorrectly as directly proportional, but that would be revealed by data points along a straight line on the graph. The term 'positive relationship' is vague and should be discouraged. 

Syllabus sections