DP Biology (first assessment 2025)

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Question 22M.2.HL.TZ2.1a.iii

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Date May 2022 Marks available [Maximum mark: 2] Reference code 22M.2.HL.TZ2.1a.iii
Level HL Paper 2 Time zone TZ2
Command term Compare and contrast Question number a.iii Adapted from N/A
a.iii.
[Maximum mark: 2]
22M.2.HL.TZ2.1a.iii
(a.iii)

Compare and contrast the cumulative increase in mass of the three groups of colonies once they were placed in the field.

[2]

Markscheme
  1. all increased in (cumulative) mass gain up to 5–6 weeks
    OR
    all decreased (in cumulative mass gain) after 6 weeks;
  2. both with neonicotinoids have significantly lower (cumulative) mass than the control colonies (at all periods)
    OR
    colonies exposed to high concentration always had the lowest (cumulative) mass gain;

Accept vice versa.

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