
thumb|Mantis ootheca An ootheca (: oothecae ) is a type of egg capsule made by any member of a variety of animal groups such as mollusks, mantises, and cockroaches. It is also referred to by its shortened nickname, "ooth".
Article · 中文
卵鞘是一种由软体动物、螳螂和蟑螂等物种產生的卵块。 卵鞘由结构蛋白和鞣剂组成,使蛋白质在卵周围变硬,从而提供保护和稳定性。由于卵鞘外壳的复杂结构提供了进化繁殖优势(尽管适应性和寿命也取决于其他因素,如孵化的温度)。卵鞘最明顯存在于蟑螂(蜚蠊目)和螳螂(螳螂目)中。 卵鞘保护卵免受微生物、寄生蜂、捕食者和天气的侵害;卵鞘通过其表面的变化保持稳定的水平衡,它在干燥气候下是多孔的,以防止脫水;在潮湿气候下是光滑的,以防止过饱和。其组成和外观因物种和环境而异。
Abstract from DBpedia / Wikipedia · CC BY-SA
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