Adrian is a sexually active teenager. Which type of birth control would greatly diminish the chances of contracting a sexually transmitted infection?
a. birth control pills c. spermicide
b. condoms d. rhythm method
b
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By what age do children usually have a vocabulary of about 500 words?
a. 2 years c. 3 years b. 3 years d. 4 years
What part of the retina has the greatest concentration of photoreceptors, and is therefore associated with the greatest visual acuity?
a. The fusiform depression b. The ganglion c. The peripheral sulcus d. The fovea
As part of a research study, Margaret wants to determine if religious environments will influence the consumption of alcohol among freshmen. She has several hundred freshmen complete her survey. Once the data have been collected, she analyzes the scores. Which of the following is the dependent variable in this study?
A. College freshmen B. Religious environments C. Consumption of alcohol D. Surveys
Marcus is a 4-year-old. Which of the following behaviors displayed by him is different from the typical psychosocial developments observed in the infancy and toddlerhood period of human development?
A. Marcus is extremely resistant to interacting with other children of his age. B. Marcus likes to select his toys by himself. C. Marcus is fond of his parents and spends most of his time playing with them. D. Marcus uses his name to refer to himself.