Worldwide, almost one out of every ____ people has been infected with the hepatitis B virus (HBV)

a. three c. five
b. four d. six


ANS: A

Interdisciplinary Studies

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Often confused with abortion, this contraceptive method is used by a woman to prevent pregnancy after intercourse

a. two-day method b. sterilization c. emergency contraception d. voluntary surgical contraception

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Since scientists are always objective, you do not have to be concerned about their observations being biased

Indicate whether the statement is true or false.

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Answer the following statement(s) true (T) or false (F)

Federally funded research has to be made available to the public.

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_____ love is often the first stage of a romantic relationship.

A. Companionate B. Empathetic C. Passionate D. Apathetic

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