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Question

A plant shows thallus level of organisation. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. It may belong to

A
Pteridophytes
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B
Gymnosperms
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C
Monocots
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D
Bryophytes
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Solution

The correct option is D Bryophytes
Bryophytes are non-vascular terrestrial plantsof moist habitat in which a multicellular diploid sporophyte lives as a parasite on an independent multicellular haploid gametophyte that develops multicellular jacketed sex organs. True roots are absent, instead rhizoids occur, which may be unicellular or multicellular. An external layer of water is essential for the swimming of male gametes to the archegonia. So, the correct answer is 'Bryophytes'.

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