DP Biology (first assessment 2025)

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Question 21N.2.SL.TZ0.1b.ii

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

The researchers concluded that there was a threshold coral cover percentage, below which infection rates tended to remain fairly low. Using the data in the table, identify this threshold level.

[1]

Markscheme

50 % / 25 % / 49 %
OR
25–49 % (coral cover);

Examiners report

Most were able to able to gain the mark in 1b (ii) for saying that the threshold level was 25 – 49 %.

Syllabus sections