is true?
A)Currently, there is no vaccine available to protect against human papillomavirus (HPV).
B)Latex condoms provide perfect protection against STIs by stopping the passage of
bacteria and viruses.
C)Using a needle, syringe, or drug liquid previously used by others can spread STIs.
D)A blood test to detect HIV infection must be administered and repeated at least three
months after risky behavior.
During her first prenatal visit, LaToya’s doctor explains that the __________ prevent(s) the
skin from chapping during the long months spent bathing in the amniotic fluid.
A)villi
B)vernix
C)glial cells
D)chorion
Teenagers at greatest risk for sexually transmitted infections (STIs) are
A)economically disadvantaged young people who feel a sense of hopelessness.
B)those from economically advantaged families whose parents are permissive.
C)teenagers attending magnet schools in low-income neighborhoods.
D)teenagers who have easy access to condoms and contraception.