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Question 21M.2.SL.TZ2.1c

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.SL.TZ2.1c
Level SL Paper 2 Time zone TZ2
Command term Identify Question number c Adapted from N/A
c.
[Maximum mark: 1]
21M.2.SL.TZ2.1c

Honeybees (Apis mellifera) are key pollinators in most ecosystems. The worldwide use of neonicotinoid pesticides has caused concern because they may be contributing to the decline of honeybee populations.

Scientists measured the concentration of five neonicotinoids (acetamiprid, clothianidin, imidacloprid, thiacloprid and thiamethoxam) in honey samples from 198 different locations across the world. Each pie chart shows the relative frequency of neonicotinoids in honey samples from a continent.

[Source: Republished with permission of American Association for the Advancement of Science, from A worldwide survey of neonicotinoids in honey, Mitchell, E.A., et al., Science, Volume 358, Issue 6359, 2017. Permission conveyed through Copyright Clearance Center, Inc. https://science.sciencemag.org/content/358/6359/109.full.]

The neonicotinoids can be used alone or together with other neonicotinoids. The percentage of honey samples with 0, 1, 2, 3, 4 or 5 different neonicotinoids in each continent are shown in the stacked bar chart.

[Source: Republished with permission of American Association for the Advancement of Science, from A worldwide survey of neonicotinoids in honey, Mitchell, E.A., et al., Science, Volume 358, Issue 6359, 2017. Permission conveyed through Copyright Clearance Center, Inc. https://science.sciencemag.org/content/358/6359/109.full.]

(c)

Identify the total percentage of honey samples contaminated with neonicotinoid pesticides in the continent with the lowest overall levels of contamination.

 

. . . . . . . . . . . . %

[1]

Markscheme

57 (%) ✔

Allow range 56 % to 58 %.

Examiners report

In general, the data analysis question was well attempted by the majority of students.

Most read the graphs correctly, stating between 56 and 58 %.