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 :)
Answer:
The correct answer is D) Compact Bone
Here are some resources that you can use if you want to be tobacco-free :
- state phone anti-smoking/tobacco quitting services, where you can talk to the experts about the best steps to be tobacco-free
- Nicotine anonymous , a place created to rehabilitate nicotine addict
- County Health department, where you can find all kind of information about how to quit using tobacco products
A physical change is a change that the molecules of the article do not change so the answer is
a match chopping a piece of wood :))))
i hope this is helpful
have a nice day
A major source of today's medicine is COAL
