How many hours of sleep should a teen get every night to keep his or her body in good physical health?
a. at least ten b. less than eight c. at least nine d. six to seven

How could natural selection best be used to explain the evolution of the white fur of arctic fox

How does drinking alcohol or using drugs put a person at risk for hiv infection? a.they improve judgment, which makes it more likely for people to engage in risky behavior. b.they impair judgment, which makes it more likely for people to engage in risky behavior. c.they impair judgment, which makes it less likely for people to engage in risky behavior. d.they improve judgment, which makes it less likely for people to engage in risky behavior.

Which is the most appropriate response to being cyberbullied? keep records ignore it and let it pass criticize the cyberbully to friends respond to the sender as quickly as possible