The basis of seed habit in Selaginella is | vedclass

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(D) $Selaginella$ exhibits a rudimentary seed habit,which is considered a precursor to the evolution of seeds in higher plants. This phenomenon is bas

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(D) $Selaginella$ exhibits a rudimentary seed habit,which is considered a precursor to the evolution of seeds in higher plants. This phenomenon is based on several key evolutionary adaptations: $1$. $Heterospory$: The production of two different types of spores (microspores and megaspores). $2$. Reduction in the number of megaspores: In $Selaginella$,the number of functional megaspores is significantly reduced,often to a single functional megaspore per megasporangium. $3$. Retention of the megaspore: The megaspore is retained within the megasporangium (often associated with the cone or strobilus) for a period,allowing for the development of the female gametophyte. Therefore,all these factors contribute to the seed habit.

The basis of seed habit in $Selaginella$ is

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