| 1. | Juveniles have external threadlike gills very much like those of newts.
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| 2. | The leaves are linear, threadlike, or scale-like.
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| 3. | Gills are tissues which consist of threadlike protein structures called operculum.
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| 4. | Interspersed among the asci are threadlike sterile cells called paraphyses.
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| 5. | The filaments are threadlike, usually pale brown, and often bald.
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| 6. | The leaves are threadlike to linear and have serrated edges.
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| 7. | The symmetrical cephalic tentacles are threadlike, with blunt or rounded tips.
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| 8. | The pathogen may also survive in debris as threadlike strands called hyphae.
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| 9. | Fire moss reproduces vegetatively via protonemata ( threadlike or platelike growths ).
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| 10. | Gills are tissues which consist of threadlike structures called filaments.
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