Clams and oysters extract calcium and carbonate from the water to build their shells. However, from the options provided, none of the choices are correct, as calcium and carbonate are not listed. If you were looking for the main materials involved, they use calcium ions (Ca²⁺) and carbonate ions (CO₃²⁻) to form calcium carbonate (CaCO₃), which makes up their shells.
What do animals such as clams and oysters extract from the water to build their shells?(1 point)
Responses
silicon
silicon
carbon
carbon
hydrogen
hydrogen
fructose
1 answer