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Question 18N.3.HL.TZ0.15a

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.3.HL.TZ0.15a
Level HL Paper 3 Time zone TZ0
Command term Identify Question number a Adapted from N/A
a.
[Maximum mark: 1]
18N.3.HL.TZ0.15a

The graph shows a theoretical model that divides species into five ecological groups (I to V) related to the degree of tolerance to an increasing pollution gradient.

[Reprinted from Marine Pollution Bulletin, 40, A. Borja, J. Franco and V. Perez, 'A marine biotic index to establish the ecological quality of soft-bottom benthos within European estuarine and coastal environments', pp. 1100–1114, Copyright (2000), with permission from Elsevier. https://www.sciencedirect.com/journal/marine-pollution-bulletin]

(a)

Identify the group that is most intolerant to pollution.

[1]

Markscheme

«group» I ✔

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