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Biology (Medical Entrance)
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In which of these plants, sex organs are embedded in thallus?
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A
Riccia
💡 Explanation:
Riccia, a liverwort (Marchantiophyta), has a simple thallus body in which the sex organs (archegonia and antheridia) are embedded. In mosses, ferns, and Azolla, the sex organs are more distinctly structured rather than embedded in the thallus.