Monozygotic twins are born from
(a) a single egg fertilized by two sperm
(b) a single egg fertilized by one sperm
(c) two eggs fertilized by two sperm
(d) two eggs fertilized by a single sperm
B
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A toddler's vocabulary grows rapidly between 18 and 24 months, as children engage in ____________________, or mapping a word onto an underlying concept after only one exposure
Fill in the blank(s) with correct word
Bob has never met Lady Gaga, but he is convinced that she is deeply in love with him. Bob is suffering from
a. grandiose delusions. b. jealous delusions. c. obsessive-compulsive disorder. d. erotomanic delusions.
Research suggests that prejudice is reduced when ________
a. groups are asked to pretend that they like each other. b. an intellectual argument against prejudice is made. c. members of different groups are made to cooperate with one another to achieve a goal. d. a moral argument against prejudice is made.
Serena is pregnant and has just been informed by her doctor that her baby's heart, eyes, hands, and feet are beginning to develop. Therefore, Serena is careful to avoid __________ during this __________ stage of development.
A. teratogens; embryonic B. teratogens; fetal C. alcohol and smoke; zygotic D. alcohol and smoke; fetal