What is a hematocrit measuring?
A) the percentage of blood that is comprised of red and white blood cells
B) the percentage of blood that is comprised of red blood cells only
C) the percentage of blood that is comprised of plasma
D) the amount of hemoglobin in blood
E) the amount of oxygen that can be transported by blood
Ans: B) the percentage of blood that is comprised of red blood cells only
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Which of the following is used at extremely high temperatures to destroy living organisms?
a. cold tray c. radiation b. autoclave d. ultrasound
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a) it increases their permeability b) it does not affect their permeability c) it decreases their permeability
The exchange of oxygen and carbon dioxide between air in the alveoli and blood in the pulmonary capillaries is called _____.?
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