In Selaginella,megaspores are about how many | vedclass

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(D) In $Selaginella$,each microsporangium produces a large number of microspores $(400-1600)$ which are very small,typically $15-50 \mu m$ in diameter

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(D) In $Selaginella$,each microsporangium produces a large number of microspores $(400-1600)$ which are very small,typically $15-50 \mu m$ in diameter.Conversely,the megasporangium produces only four haploid megaspores,which are significantly larger,measuring $1.5-5.0 \ mm$ in diameter.Comparing the average diameters ($50 \mu m$ vs $5000 \mu m$),the megaspores are approximately $100$ times larger than the microspores.

In $Selaginella$,megaspores are about how many times larger than microspores?

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