Answer: b. expressing more than one feeling.
Explanation:
When a person reveals feeling there are chances that more than one feeling get expressed as a person can have both positive and negative believes for something thus a person may show criticism and appreciation for the same thing thus disappointments and happiness may get revealed for the same thing simultaneously.
2. When the left ventricle relaxes, the aortic valve closes and the mitral valve opens. This lets blood flow from the left atrium into the left ventricle.
4. Quickly shocking the heart with an automated external defibrillator (AED) can save a person's life after cardiac arrest. An AED is a portable, battery-operated device that a bystander can use. It checks the heart rhythm and can send an electric shock to the heart to try to restore a normal rhythm.
5. High blood pressure can damage your arteries by making them less elastic, which decreases the flow of blood and oxygen to your heart and leads to heart disease. In addition, decreased blood flow to the heart can cause: Chest pain, also called angina.
hope this helps :)
Ions that can regulate metabolic processes are called electrolytes.
<span>Blood pressure is the force of your blood pushing against the walls of your arteries.</span>