Most substances that have a reputation for enhancing sexual desire or performance work because
a. of chemicals in the substance that affect nerves in the penis or clitoris
b. of chemicals in the substance that affect the brain
c. of chemicals in the substance that affect blood flow
d. of heightened expectations and the social situation
d
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You were recently watching your younger sister, who is 13yearsold, try to figure out why her cell phone was not working. You were fascinated by the systematic problem-solving strategies that she was using
You remember just a few months ago she would not have been able to perform at this level of hypothesis testing. According to Piaget, what type of reasoning is she using? a. random operations b. haphazard trial and error processing c. discrete trial learning d. hypothetical-deductive reasoning
Postpartum depression may be triggered by pronounced swings in hormone production that occur after birth. These hormones are __________
a) testosterone and progesterone b) estrogen and progesterone c) dopamine and progesterone d) catecholamines and progesterone