what is heterospory ? briefly comment on yhe significance and give two examples
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Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants.Heterospory was evolved from isospory independently by several plant groups in the Devonian period as part of the process of evolution of the timing of sex differentiation.
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The phenomenon of producing two different kinds of spores in the same plant is known as heterospory.
Significance of heterospory:
Heterospory leads to the development of seeds in gymnosperms and angiosperms.
It is required in the differentiation of male and female gametophytes.
Examples: Salvinia, Selaginella
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