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What is the typical diameter range of a pollen grain?
A2 to 5 millimetres
B250 to 500 micrometres
C2 to 5 micrometres
D25 to 50 micrometres
Answer & Solution
Correct answer: D. 25 to 50 micrometres
Pollen grains are generally spherical and about 25 to 50 micrometres across.
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