Question

What do animals such as clams and oysters extract from the water to build their shells?(1 point)Responsesfructosefructosesiliconsiliconcarboncarbonhydrogenhydrogen

Answer 1

Clams and oysters extract **calcium** and **carbonate ions** from the water to build their shells. However, from the options you've provided, it appears that the closest relevant answer is **carbon**, as it is part of the carbonate ions (CO3^2-) used in the shell formation.