Which statement best describes a primary function of the cardiovascular system? Stores calcium for the rest of the body. Removes waste products from the blood. Removes oxygen from the air in the lungs. Absorbs food to supply nutrients to the body.

## Step 1<br />The cardiovascular system, also known as the circulatory system, is responsible for the transportation of blood, nutrients, oxygen, carbon dioxide, and hormones to and from cells throughout the body. It also helps in the regulation of body temperature and pH levels.<br /><br />## Step 2<br />The statement "Removes waste products from the blood" best describes a primary function of the cardiovascular system. This is because the cardiovascular system carries waste products away from cells to the kidneys and liver for excretion.<br /><br />## Step 3<br />The other options do not accurately describe the primary functions of the cardiovascular system. For example, the cardiovascular system does not store calcium for the rest of the body, remove oxygen from the air in the lungs, or absorb food to supply nutrients to the body.