- woodyvineshavingdiskliketipsonthetendrils.Thin,rounded,andsmooth-edged;disklike.Usedoffishscales.flatteneddisklikeseaurchinsthatliveonsandybottoms.Plateletisaminute,irregularlyshaped,disklikecytoplasmicbodyfoundinbloodplasmathatpromotesbloodclottinga...
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