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![a SEM image of chalk made up of calcium carbonate. b SEM image of chalk... | Download Scientific Diagram a SEM image of chalk made up of calcium carbonate. b SEM image of chalk... | Download Scientific Diagram](https://www.researchgate.net/publication/351649189/figure/fig6/AS:1024681016569886@1621314400358/a-SEM-image-of-chalk-made-up-of-calcium-carbonate-b-SEM-image-of-chalk-made-up-of.png)
a SEM image of chalk made up of calcium carbonate. b SEM image of chalk... | Download Scientific Diagram
![Coccolithophore cells covered with calcium carbonate (chalk) scales. Progress in understanding the unique physiology of these globally important organisms will help us to understand how they may respond to changing ocean chemistry. Coccolithophore cells covered with calcium carbonate (chalk) scales. Progress in understanding the unique physiology of these globally important organisms will help us to understand how they may respond to changing ocean chemistry.](https://s3-eu-west-1.amazonaws.com/ppreviews-plos-725668748/1549564/preview.jpg)