DP Biology (first assessment 2025)

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Question 21N.2.SL.TZ0.e

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

This study was carried out over six years on the Australian Great Barrier Reef. State one advantage of field investigations compared with mesocosm experiments to study ecological processes.

[1]

Markscheme

real environmental conditions / larger scale investigations / more variables studied;

Examiners report

In 1e most were able to give a reason why the study was better than a mesocosm.

Syllabus sections