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How is the nutritive tissue in the seeds of gymnosperms formed?
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- The three main parts of a typical mature eudicot seed are the _______ . a. pollen grain, egg, and seed coat b. embryo, endosperm, and seed coat c. megaspores, microspores, and ovule d. embryo, cotyledons, and seed coatWhere are microspore produced in gymnosperms? Megaspores give rise to which structure in gymnosperms?How is gymnosperm produce microspore and megaspore?