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Question

Heterospory is found in some members of _______ and all members of ______.

A
Bryophyta, Pteridophyta
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B
Pteridophyta, Bryophyta
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C
Bryophyta, Gymnospermae
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D
Pteridophyta, Spermatophyta
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Solution

The correct option is C Pteridophyta, Spermatophyta
Production of spores of two different sizes and sexes by the sporophytes of land plants is called as Heterospory. In the evolution of plants, Pteridophyta is intermediate between bryophytes and gymnosperms. All bryophytes are homosporous and all gymnosperms are heterosporous. Microspores and megaspores is a characteristic feature in the life cycle of a few members of Pteridophyta and all spermatophytes.
So the correct option is 'Pteridophyta, Spermatophyta.'

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