DP Biology (first assessment 2025)

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Question 21N.2.SL.TZ0.3b.i

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.2.SL.TZ0.3b.i
Level SL Paper 2 Time zone TZ0
Command term Draw Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
21N.2.SL.TZ0.3b.i
(b.i)

The image shows an example of a soil food web.

[Source: Anon., n.d. The Soil Food Web. [image online] Available at: https://www.nrcs.usda.gov/wps/portal/nrcs/
photogallery/soils/health/biology/gallery/?cid=1788&position=Promo [Accessed 11 March 2020].]

 

Draw a food chain from this food web, showing at least three organisms.

[1]

Markscheme

food chain of three or more organisms starting with plants;

Examiners report

Many took the word ‘draw’ literally in the food chain, and the drawings of the nematodes and fungi amused the examiners. A food chain must start with a plant. The stem did say “three organisms”. Detritus was not taken as an organism, so negated the mark.

Syllabus sections