Which of the following is TRUE about condoms pre-lubricated with nonoxynol-9?
A. There is no evidence that they are any more effective than ones without nonoxynol-9.
B. They decrease the risk of HIV transmission.
C. They cost less than non-lubricated condoms.
D. They prevent urinary track infections.
A. There is no evidence that they are any more effective than ones without nonoxynol-9.
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The use of inbred lines of mice
A. reduces genetic heterogeneity. B. reduces experimental variables. C. increases similarity between individuals. D. leads to syngeneic animals. E. All of the above.
A medical term that means inflammation of bone and bone marrow is ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements depicts the association that has been proven between alcohol use and academic achievement?
A. Students who engage in alcohol use for the first time before age 13 are at an increased risk of engaging in other risky behaviors. B. Students with higher grades are more likely to engage in current alcohol use than other students. C. Evidence does not currently support an association between alcohol use and academic achievement. D. High School students who use alcohol and other drugs are significantly more likely than other students to drop out of school.
Smoking causes most lung cancer deaths
Indicate whether the statement is true or false