Genalex medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect normal levels of dissolved thyroxine ( to ), using a blood sample that is as small as . calculate the minimum mass in micrograms of thyroxine that the new system must be able to detect. be sure your answer has the correct number of significant digits.

Tessa’s friend milo offers her a ride home. tessa does not like riding with milo. he insists that everyone wear a seat belt, and he listens to classical music. he drives a small car, and usually texts while driving. why should tessa refuse milo’s offer? milo texts while driving. milo listens to classical music. milo drives a small car. milo insists that everyone wear a seat belt.