Why is indoor air pollution a serious health hazard in some developing countries?
a. the burning of coal releases significant amounts of particulates into the air.
b. people smoke more in developing countries.
c. many homes rely on indoor burning of wood or dung without proper ventilation.
d. most houses in these countries are well insulated, increasing household exposure to radiation?

This patient undergoes a gallbladder sonogram due to epigastric pain. the report indicates that the visualized portions of the liver are normal. no free fluid noted within morisons pouch. the gallbladder is identified and is empty no evidence of wall thickening or surrounding fluid is seen there is no ductal dilation. the common hepatic duct and common bile duct measure 0.4 and 0.8 cm respectively. the common bile ductmeasurement is at the upper limits of normal what cpt code in icd-10 cm code was used

Where can dna be found in a prokaryotic cell

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?