Heterospory, i.e., formation of two types of spores --- microspores and megaspores is a characteristic feature in the life cycle of a few members of pteridophytes and all spermatophytes. Do you think heterospory has some evolutionary significance in plant kingdom?

Heterospory, i.e., formation of two types of spores --- microspores an

1.	Heterospory, i.e., formation of two types of spores --- microspores and megaspores is a characteristic feature in the life cycle of a few members of pteridophytes and all spermatophytes. Do you think heterospory has some evolutionary significance in plant kingdom?
Answer» Heterospory, i.e., formation of two types of spores --- microspores and megaspores is a characteristic feature in the life cycle of a few members of pteridophytes and all spermatophytes. Do you think heterospory has some evolutionary significance in plant kingdom?