A man becomes ill and goes to the doctor. The doctor determines that the man has hemorrhagic fever. The man feels tired, dizzy, has serious muscle aches, and internal bleeding. The doctor determines that the antibiotics would be of little use. Which of the following BEST explain why the doctor did not prescribe antibiotics? a. The man has a bacterial infection so antibiotics would not work for him
b. The man is so sick that the doctor thinks he needs surgery
c. The man has a virus, so the disease would not respond to antibiotics
d. The man will get better on his own because hemorrhagic fever is not serious

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.