NEET Biology question
Consider the following statements I. Hydropterides are only plant among the heterosporous pteridophytes that are leptosporangiate II. Heterosporous pteridophytes were the first land flora of earth III. The difference in size between microspore and megaspore in Seleginella kraussiana is 1:200 IV. Female gametophyte of Seleginella mostly have single archegonium Which of the above statement are correct?
Answer: (D)
Solution
Hydropterides (water ferns like Marsilea, Salvinia, Azolla) are indeed the leptosporangiate group among heterosporous pteridophytes; heterosporous pteridophytes represent an early evolutionary stage of land flora; Selaginella
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