1. True- because scientific theory means that <span>idea supported through research that attempts to explain existing observations or predict new ones.</span>2. False- because a cross-sectional means that its a study that is about different groups.
3. B-<span>An extraneous variable clarifies the relationship between the independent and dependent variables.</span>
Because it's apart of their History.
The resource for friends and family of alcoholics is to go to AA meetings and get help
If taken within the first 24 hours after having sex, emergency contraception is 95% effective. Emergency contraceptive works by delaying ovulation.