Question:** A palynologist is analyzing pollen grains that are roughly spherical in shape with a radius of \( a \) micrometers. If the radius of a spore is \( \frac{a}{2} \) micrometers, what is the ratio of the surface area of a pollen grain to the surface area of a spore?

Fri, 17 Apr 2026 00:17:52 +0000

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