Normally, oxygen from the blood cells supply your muscles with the energy it needs to carry out certain actions. However, when there isn't enough oxygen to support the muscles, it produces lactic acid, or fermentation, to make up for the oxygen. (That's why you get that burn-y feeling whenever you exercise!)
Ok here we go:
Science starts with observing which leads to hypothesis, which is tested by experiments.
The other two i am not sure of. Hope i was a help to you. One thing you can do to figure out the other two is google: "what type of science includes medicine and envirnmental science", and do the same for the other one.
The right ventricle will pump blood into the lungs to be oxygenated bia the pulmonary artery.
The statement above is TRUE.
Medical advance refers to the document which a patient write down in advance in other to indicate the type of medical treatment he or she will prefer in case the person become so sick that they can not communicate this need to the health providers again.
The medical assistant in the hospital is the one who act as the patient's coordinator by providing means of communication between the other health providers and the patient. So, it is their duty to ensure that the patient has an advance directive in place.
