As the US population continues to grow in the number of older adults, the prevalence rate in the U.S. is expected to _________in numbers of people by the year_____
a. more than quadruple; 2040
b. more than double; 2040
c. stabilize; 2070
d. more than double; 2020
B
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Anna and Brad are siblings, who grew up in the American Midwest. Compared to his sister, Brad is more likely to openly express which emotion?
a. anger b. sadness c. shame d. fear
During the excitement phase, the testicles increase in size, becoming up to ____
a. 20% larger c. 70% larger b. 50% larger d. 80% larger
If orgasm and ejaculation occur together, ejaculation can occur in two stages. During the first stage, which lasts only a few seconds, there are contractions in the vas deferens, seminal vesicles, and ____
a. prostate gland c. external urethral sphincter b. scrotum d. testes
Sam wants to borrow his father's car to use on a date. Because his dad becomes absorbed in reading the newspaper, Sam must repeat his request several times before he gets his dad's attention
From week to week he does not know how many requests he will have to make. What type of schedule of reinforcement is involved here? a) fixed-ratio b) fixed-interval c) variable-ratio d) variable-interval