The reproductive system is often combined with the urinary system to create the genitourinary system

In 1937, a tragedy occurred that caused more than 100 patients to die from ingesting:

a. elixir Sulfanilamide b. cocaine c. percocet d. thalidomide

A diode electron tube such as a valve tube

a. is used for amplification. b. has a negatively charged anode. c. is used to vary the primary voltage. d. can be used for rectification.