____ changes the pH of sperm, which makes them swim too fast and tire themselves out too early, making them less likely to reach the egg

a. Marijuana c. Cocaine
b. Alcohol d. Nicotine


ANS: A

Interdisciplinary Studies

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____ lubricate the nipple to prevent cracking during breastfeeding

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For those who practice BDSM, it is usually because of past abuse or difficulty with normal sex

Indicate whether the statement is true or false.

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A scale in which respondents who agree with a statement also agree with milder versions of statements on the same continuum is a

a) Guttman scale. b) Likert scale. c) Expert ranking scale. d) Thurstone scale.

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Describe the current treatment methods used for HIV/AIDS.

What will be an ideal response?

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