Syrill is HIV positive. The HIV virus destroy red blood cells. Syrill says she often experiences severe shortness of breath even while lying down, through she is not asthmatic. Explain to Syrill why this might be so?​​

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explanation:

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.