易混淆的单词： Foraminifera

Foraminifera grow in the ocean and when they die , mix with coral to become the sediment that forms atolls .

有孔虫生长在海洋里，它们死后与珊瑚混合，变成能够构成环状珊瑚的沉积物。

Stewart fallon of the australian national university in canberra and his colleagues collected samples from drill cores of the marine crust of tiny marine fossils called foraminifera .

堪培拉澳大利亚国立大学的stewartfallon和他的同事收集海洋地壳中的名为有孔虫的海洋生物化石。

Carbon dioxide and ice.researchers have measured the ratios of boron and calcium in planktonic foraminifera to calculate the levels of atmospheric carbon dioxide over the past 20 million years .

研究人员通过测量浮游有孔虫中硼与钙的比率来计算过去2000万年前大气二氧化碳含量。

No surprise there -- from coral to clams to microscopic foraminifera , shelled critters make their hard parts out of calcium carbonate ( caco3 ) .

这并不令人惊讶不管是珊瑚还是蛤类或是微观的有孔虫类，这些甲壳类生物都用碳酸钙（caco3）来组成其坚硬的部分。

There is evidence that the amount of carbonate in the shells of foraminifera , micro-plankton that are crucial to ocean ecology , has recently dropped by as much as a third .

有证据表明海洋生态中有重要地位的有孔虫类和微浮游生物的外壳中碳酸盐的含量近来已经下降了三分之一。