Question

Heterospory is originated in​

Answer 1

Answer:

Origin of Heterospory:

The fossil evidence indicates that some spo­rangia of the plant contained both small and large spores, though the size differences are not so pro­nounced. So a single sporangium contained both microspores and megaspores. At a later period, the microsporangia and megasporangia might have been differentiated.