Q. 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 archenogium Which of the above statement are correct?
A) I and II
B) IV
C) I, II and IV
D) I, II, III and IV
Explanation
Hydropterids are only plant among the heterosporous. Pteridophytes that are leptosporangiate. Leptosporangiate in which the sporangium origin from epidermal cell Heterosporous pteridophytes were the first land flora of earth. The difference in size between microspore and megaspore is 1:2000 female gametophyte of Selaginella mostly have single archegonium
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.