A-LevelBiologyTransport in plants9700/12 · Feb/Mar 2021 · Q271 Mark
The diameter of a tree trunk usually decreases slightly during the day. Which changes in environmental factors during the day could cause the diameter to decrease even more? [Venn diagram showing increased temperature, increased humidity, increased light intensity, with regions A, B, C, D labeled]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
AA
BB
CC
DD
✓ Correct answer
A: A
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