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Speleology

Speleology (also spelled spelæology or spelaeology) is the scientific study of caves and other karst features, their make-up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term speleology is also sometimes applied to the recreational activity of exploring caves, but this is more properly known as caving, spelunking or potholing. Speleology and caving are often connected, as the physical skills required for in situ study are the same. Speleology is a cross-disciplinary field that combines the knowledge of chemistry, biology, geology, physics, meteorology and cartography to develop portraits of caves as complex, evolving systems.

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系統學

Biology; Cell biology

基於資訊從觀測和實驗 ; 生物的 classiÞcation包括重建的進化生命有機體之間的關聯。目前,到 Þve 的王國 (莫內拉原生生物足底,真菌,Animalia) 分為生物廣泛的系統。 ...

共生

Biology; Cell biology

生活在一起 ; 兩個或多個物種的互動關係可能寄生、 共生,或互惠。兩種生物之間的關係。

突觸

Biology; Cell biology

軸突與相鄰的神經元之間的交界處。

突觸

Biology; Cell biology

在減數分裂過程中染色體的對齊方式我,使每個染色體及其同系物旁邊。

synergid

Biology; Cell biology

在胚囊的被子植物的側翼蛋儲存格的儲存格。花粉管生長通過之一 (通常小) synergids。

關節滑膜

Biology; Cell biology

最動類型的聯合。結締組織,其中內部是滑膜 þuid 與 Þlled,涵蓋骨骼和軟骨的骨頭兩端被覆蓋。

替代

Biology; Cell biology

一種突變的一個基地取代另一種類型。

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