Apes' usage of symbolic codes and sign languages rises to the level of a human at the age of
a. one year.
b. two and a half years.
c. four years.
d. six years.
B
Psychology
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Which of the following statements is true about individuals with sex chromosome disorders?
A) Males with XYY syndrome are more aggressive and antisocial than XY males. B) Verbal difficulties are common among girls with triple X syndrome. C) Most children with sex chromosome disorders suffer from mental retardation. D) Girls with Turner syndrome have trouble with reading and vocabulary.
Psychology
Increased sexual attraction and subtle changes in secondary sex characteristics begin happening at around the age of
A) 13 for girls and 14 for boys. B) 9 for boys and 11 for girls. C) 10. D) 7.
Psychology