Demographically speaking, the effects of AIDS are most significant because a AIDS strikes affluent people more than poor people. b it is caused by a virus. c it is not known who is resistant to AIDS. d AIDS sickens and kills the youngest and most productive members of society.

Which description best defines the nervous system and its two main branches? a: the message center of the body, split into the autonomic nervous system and the somatic nervous system b: the control panel of the body, split into the central nervous system and the exterior nervous system c: the message center of the body, split into the central nervous system and the peripheral nervous system d: the control panel of the body, split into the brain and the spinal cord

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

What best describes maintaining homeostasis