18.5 to 25 is the normal body fat.
The diagnostic test that records the electrical activity of the heart is called ECG or Electrocardiogram. An ECG is a painless and simple test, which uses electrodes arranged and attached to your skin, and records the activity of the heart. ECG detects any abnormal rhythm and pattern of the heart beat and this helps doctors in diagnosing arrhythmias.
I think the correct answer would be that a<span> food pyramid helps individuals plan their diet by giving guidelines on vitamins, minerals, and calories to consume each day. It shows what are the recommended meals or food for humans to consume. Hope this helps.</span>
B. Red blood cells contain a protein that binds with oxygen.
The lungs recoil to force the air out of the lungs. The intercostal muscles relax, returning the chest wall to its original position. The diaphragm also relaxes, moving higher into the thoracic cavity.
