The correct answer is A. Eat nutrient-dense food and engage in regular physical activity
Explanation:
An appropriate BMI (Body Max Index) indicates there is an appropriate balance between diet and physical that helps Karen maintain a healthy weight. Due to this, it is not necessary for Karen to drastically change her habits but just to follow general healthy recommendations; this includes eating nutrient-dense food such as fruits, vegetables, lean meats or nuts as these contain multiple nutrients that are essential for health. Also, she must do exercise regularly as this will help Karen to have healthy health and will prevent diseases such as diabetes or high blood pressure. Thus, the best strategy for Karen is "Eat nutrient-dense food and engage in regular physical activity."
The partial oxygen pressure (pO2) should be high for the maximum loading of hemoglobin with the oxygen.
Hemoglobin is a quaternary protein that transports oxygen in the blood. Hemoglobin is made up of four heme subunits and an Iron atom. Blood oxygen is bound to the hemoglobin in red blood cells. One molecule of hemoglobin binds the four oxygen molecules and forms the oxyhemoglobin.
The partial pressure of the oxygen is an important factor that determines the binding affinity of oxygen to the hemoglobin. The higher the partial pressure of oxygen the more oxygen binds with the hemoglobin. The hemoglobin binds oxygen rapidly in the pulmonary capillaries of the lungs due to higher partial pressure of oxygen.
Learn more about Oxyhemoglobin here,
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Staying abstinent can keep you free of sexually transmitted diseases and also keep your mental, emotional, and physical state as good as possible! At a young at(teens-20) sexual activity can actually harm some bodies, as they are not yet ready and matured enough. Also, when you are young it is hard enough to be emotionally stable, let alone having had sex and be emotionally stable. Remember there is always the word no, and places to stop. You can have a friend and a safeword for them to come get you etc. <span />
