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Coral reefs
Coral reefs are structures formed from the calcium carbonate secretions of corals. They are colonies of tiny animals in marine areas containing few nutrients.
Industry: Natural environment
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Coral reefs
circumesophageal 神經戒指
Natural environment; Coral reefs
前濃度的神經組織中幾種無脊椎動物的群體,如軟體動物、 剛毛蠕蟲、 sipunculids (花生蠕蟲)、 echiurans (勺子蠕蟲或旅店蠕蟲)。
遺傳漂移
Natural environment; Coral reefs
在人口中的等位基因的頻率的隨機變化。小種群,它可以導致消除偶然僅特定等位基因。它被認為是形態的原因之一,當一群生物體分開的其父人口的 ...