<span>A.it increases the efficiency with which the body delivers oxygen and nutrients to its cells</span>
The infection caused by the fungus Pneumocystis jiroveci is pneumocystis pneumonia. It<span> is the most common opportunistic infection in persons with </span>HIV <span>infection. This infection is characterized by low-grade fever, shortness of breath and oxygen saturation lower than normal. </span>
The Answer is B. The only difference between plant and animal cells are that plant cells contain chloroplasts to make chlorophyll, as well as a cell wall.
For hot or cold you can make sure to replenish electrolytes. Make sure you are dressing appropriately in cold weather (dressing warm enough but not too warm because of overheating). If you are exercising in hot weather make sure to be hydrated when you start, drink water throughout, and pay attention to your body and if you are overheating make sure you stop and take a rest or slow down.