Calcium carbonate molecules are already present to the bodies of marine organisms. Therefore, the answer is letter C. The molecule is very important most especially to the corals because it strengthens their internal structure and prevents it from being fragile against the forces inside the ocean.
Answer:
The Checks and Balances system provides each branch of government with individual powers to check the other branches and prevent any one branch from becoming too powerful.
Explanation:
The leader of the majority party in the House of Commons is usually Britain's Prime Minister.