What is a positive feedback loop? a) something that carries out a response
b) the output of a system stimulates another cycle of the system
c) a closed path that tends to reduce the activity of a body system
d) anything that causes a reaction or response

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

Which of the following forest management practices is best for reestablishing areas of forest?

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird