Once a b cell has been activated by a specific antigen (an antigen binds to an antigen receptor on the b cell membrane), it will divide, making many copies of itself. this process is known as

Which element provides strength to the exoskeleton of clams and oysters

What noticeable trend from this graph might be used to make a conclusion?

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