这种蝴蝶展现明显的两性异形，雄性的翅膀比雌性更加鲜艳。

This butterfly species shows clear ___dimorphism, with males having more colorful wings than females.

二氧化硅表现出双晶现象，既有石英晶体又有蛋白石形态。

Silica shows ___dimorphism by forming both quartz crystals and opal structures.