Presence of ciliated antherozoids in Dryopteris indicates

Terrestrial habit

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Aquatic ancestry

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Both A and B

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None of the above

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Solution

The correct option is B Aquatic ancestry
The multiflagellated antherozoids of Dryopteris, point out that they originated from aquatic ancestors. In auatic environment the multiflagellated antherozoids swim in the water and fertilize the egg. Water is necessary for the fertilisation process. It proves their aquatic ancestry.

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