In jumans oxygen enters the body and carbon dioxide leaves it through the lungs. the lungs are made of thousands of tiny air sacs surrounded by blood vessels. how does this the teo gases to diffuse quickly into and out of the blood?

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

Which of the following temperatures is considered febrile and would likely prompt a physician to administer fever-reducing medications? a rectal temperature of 100.3°f an axillary temperature of 97°f an oral temperature of 100.5°f a tympanic temperature of 100.1°f

If gonorrhea is a treatable infection why do so many men experience severe damage and even in infertility or joint infections as a result of leaving it untreated