How many different proteins, each composed of 8 amino acids, can be constructed using the 20 different amino acids found in proteins?

Did you know that a blue wales tongue weighs more than an elephant?

What is a group of organisms that are closely related and share similar characteristics

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