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InterviewSolution
| 1. |
Why is presence of water a must for fertilization in pteridophytes ? |
| Answer» The sex organs of pteridophytes are antheridia. The antheridia produce male gametes which are flagellated antherozoids. They are liberated in water and swim to reach the archegonia. The female sexorgans - i.e., archegonia possess non-motile egg. Thus, fertilization can occur only when water is present in the surrounding medium. | |