DP Biology (first assessment 2025)

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Question 21N.2.SL.TZ0.1c.i

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

Compare and contrast the data for 1998–1999 and 2002–2003.

[2]

Markscheme

Similarities
a. similar range of cover in both periods
OR
weak correlation/no correlation in either;

Differences
b. higher WSSTA range/more WSSTA in 1998–1999 than 2002–2003
OR
positive (2002–2003) versus negative correlation (98–99)
OR
more coral reefs with very low % of coral cover (0–20 %) in 2002–2003;

Must respond with one similarity and one difference for full marks.

Examiners report

In 1c contrasts were common, but few gained the comparison mark as well.

Syllabus sections