____ facilitates the process of erection
a. Nitric oxide c. Peroxynitrite
b. Nitrous oxide d. Superoxide
ANS: A
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Samantha has been away at college and has not seen her boyfriend Josh in several months. She returns home for Christmas break and meets up with Josh, who notices that Samantha has what appears to be a rash on her upper chest
This most likely signifies that Samantha ____. a. feels guilty about something she did at college b. may have contracted a sexually transmitted infection, while away at college c. is experiencing sexual excitement d. is nervous about seeing Josh again, after such a long time
What is one difference between the mean and the median?
a) The mean is appropriate for symmetrical data, while the median is appropriate for skewed data. b) The mean is appropriate for data containing many low values, while the median is appropriate for data containing many high values. c) The mean is appropriate for highly variable data, while the median is appropriate for less variable data. d) The mean is appropriate for data with extreme values, while the median is appropriate for data without extreme values.
Which of the following contraceptive methods is used most commonly by tribal societies?
A. Condom B. Sea sponge C. Spermicide D. Subdermal implant E. Pessary
Of all the gynecologic cancers, ________ cancer is the deadliest, but accounts for only about 3% of all cancers in women.
A. vulvar B. cervical C. ovarian D. uterine E. vaginal