The immune system is weakened in AIDS patients because the human immunodeficiency virus directly attacks the lymphocytes called
A. killer T cells.
B. T4 (helper) cells.
C. suppressor T cells.
D. B cells.
Answer: B
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Cattell's interest in psychology was provoked by ____
a. ?Fechner's book on psychophysics b. ?Wundt's book on experimental psychology c. ?James's Principles d. ?Freud's papers on cocaine e. ?his own use of drugs
A parent with a(n) _____ style would most likely to give a child a severe spanking for disobedience
a. neglectful b. authoritative c. authoritarian d. permissive
HIV is most often spread through ______.
A. heterosexual contact, especially from male to female B. homosexual contact, especially from male to male C. drug use and sharing of needles D. oral sex, especially from female to female
Which statement about adolescent mothers is true?
A) They are unlikely to experience pregnancy complications. B) They have unrealistically low expectations of their infants. C) They are less likely to divorce if they do marry. D) Very few give up their infants for adoption.