Answer:
The heart is made of three layers of tissue. Endocardium, the thin inner lining of the heart chambers that also forms the surface of the valves. Myocardium, the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body.
Explanation:
Answer:
depends on the house size
Explanation:
Answer: C) 15 minutes
Explanation: Out of all the surgeries during the Civil War 75 percent were amputations. An amputation took only a very short 10 to 15 minutes. They were performed quickly so they could get to more soldiers.
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C. Increase the amount of muscle mass and decrease the amount of body fat
Asthma because many people suffer with shortness of breath because of asthma
