Where do I place commas in this sentence;
Snails barnacles coral and sea urchins produce their rigid parts by combining calcium
and carbonate ions.

Respuesta :

Answer:

Snails, barnacles, coral, and sea urchins produce their rigid parts by combining calcium and carbonate ions.

Answer:

Snails, barnacles, coral, and sea urchins produce their rigid parts by combining calcium and carbonate ions.