The eardrum and the ossicles are part of the:

The media influences tobacco use by teens how? a) by showing beautiful, strong, and popular people using tobacco and cigarettes b) tobacco companies describing all the health effects of tobacco use c) cigarette businesses explaining all of the addictive qualities of tobacco use d) none of the above

What creates an electric force field that moves electrons through a circuit? a. energy sourceb. loadc. metal wiresd. resistance

Which of the following human diseases is caused by a virus that requires reverse transcriptase to transcribe its genome inside the host cell? a) herpesb) aidsc) smallpoxd) influenza