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Biodiversity and populations — Question 1

QCAA 2023, Paper 2 · 6 marks

Q1 · 2023 · Paper 2Unclassified6 marks

QUESTION 1 (6 marks)

The profile diagram shows a representative section of an ecosystem.

Biology question figure

This table can be used to classify ecosystems based on Specht’s classification system.

Biology question figure

a) Classify this ecosystem. [1 mark]

[2 marks]

b) Describe how field data could be collected for the purpose of classifying this ecosystem using Specht’s classification system. Include at least one strategy to minimise bias. [3 marks]

[2 marks]

c) Explain how Specht’s classification system could be used to monitor how the ecosystem recovers after a logging event that removes 80% of trees from the tallest plant layer. [2 marks]

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