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Do molluscs have exoskeletons of calcium carbonate?

Updated: 8/19/2019
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13y ago

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Some mollusks live in shells made of calcium carbonate, but they do not have exoskeletons like insects do.

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Q: Do molluscs have exoskeletons of calcium carbonate?
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What are clam and snail exoskeletons made of?

Calcium Carbonate


What is extracted by from water molluscs to build shells?

Calcium Carbonate


Does coral have Exoskeletons?

Yes, coral does have exoskeletons made of calcium carbonate. These exoskeletons provide structure and support for the coral polyps, which are tiny organisms that secrete the calcium carbonate to build the coral reefs. Over time, these exoskeletons accumulate and form the large coral reef structures we see in the ocean.


If Jacque cousteau recognized that coral reef exoskeletons were composed of calcium carbonate CO2 production then why not marine biologists of 2014?

Jacques-Yves Cousteau recognized that coral reef exoskeletons were composed of calcium carbonate dissolved in CO2 production because of his extensive research in the underwater world.


Does insects and round worm exhibit calcium carbonate shells?

No, insects and roundworms do not have calcium carbonate shells. Insects have exoskeletons made of chitin, a tough, flexible protein. Roundworms lack a hard outer covering and have a smooth, cylindrical body shape.


If Jacques Cousteau recognized that coral reef exoskeletons were composed of calcium carbonate dissolved CO2 production then why not marine biologists of 2014?

Jacques-Yves Cousteau recognized that coral reef exoskeletons were composed of calcium carbonate dissolved CO2 production, thanks to his research in the underwater world, field not covered by marine biologists.


What hard substance is a starfishe's exoskeleton made of?

Starfish actually have ENDOskeletons, not exoskeletons. They are made up of calcium carbonate compounds called ossicles.


Is the carbonate or the calcium the buffer in calcium carbonate?

The carbonate. Calcium is neutral.


What is the IUPAC name for the compound CaCO3?

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What is limestone calcium carbonate or calcium sulfate?

Calcium carbonate.


What does calcium do?

Calcium in the diet is necessary for strong bones and teeth. It is also used in blood clotting, nerve regulation, and muscle contraction. Calcium carbonate is a major biological structural material, especially in mollusc exoskeletons.


What chemical limestone form?

Calcium carbonate or calcium magnesium carbonate.