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Problem 5 - Entrance Test

A 7 cm tall dicot seedling showed 2.5 mm of apical growth in 5 h. Calculate the average growth rate in µm min⁻¹.

Correct: A

2.5 mm = 2500 µm in 300 min. Rate = 2500/300 = 8.33 µm min⁻¹.