DP Biology (first assessment 2025)

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Question 20N.1A.SL.TZ0.17

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1A.SL.TZ0.17
Level SL Paper 1A Time zone TZ0
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
20N.1A.SL.TZ0.17

How can a chi-squared test be used in ecological research?

A. To test the effect of an abiotic factor on one plant species

B. To test whether two species tend to live together

C. To test whether one population of plants is taller than another

D. To test whether one species is more tolerant to heavy metals than another

[1]

Markscheme

B

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