DP Biology (last assessment 2024)

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Question 23M.3.HL.TZ2.8ai

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.3.HL.TZ2.8ai
Level HL Paper 3 Time zone TZ2
Command term Identify Question number i Adapted from N/A
i.
[Maximum mark: 1]
23M.3.HL.TZ2.8ai
(i)

Identify the relationship between migration distance and plumage colouration.

[1]

Markscheme
  1. the longer the migration, the lighter the colour / vice versa;
  2. too much variation so it is not possible to see a relationship;
Examiners report

Most could identify the relationship between distance and colouration but ignored that a mathematical correlation would be difficult to establish due to the logarithmic x-axis, the relative units of the y-axis, and the limited number of points. They should realize that a trend line doesn't always indicate correlation.

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