Which of the following is typically the first indication that girls have entered puberty?
a. the peak of the growth spurt
b. the development of breast buds
c. ovulation
d. menarche
b
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By 7 months of age, infants can pick out sequences of sound that repeat in a string of nonsense words or real words in a foreign language. For example, a baby could recognize that bada is a familiar "word" in the string "badazugubadaguzubadagadu." This ability is called __________.
A. accelerated learning B. statistical learning C. joint attention D. word comprehension
Data have shown that girls in the United States and other economically developed countries have been experiencing menarche at __________ in past centuries.
A. earlier ages than B. about the same ages as C. later ages than D. more variable ages than
Which factor is least likely to be a biological cause of depressive and bipolar disorders?
a. ?mbalances in the brain's neurotransmitters b. ?abnormally low levels of the stress hormone cortisol c. ?defects in brain regions involved in mood d. ?malfunctions of the endocrine system
When faced with a challenge, Harry, a student with chronically low self-esteem, is likely to
a. work to the best of his ability. b. work as hard as those around him. c. work well enough to get the job done, but no more. d. give up before he has actually started.