Which of the following statements about the timing and variations in puberty is true?
A. Weight of an individual is unrelated to pubertal onset.
B. Two boys of the same chronological age will generally complete the pubertal sequence at the same time.
C. Genes have little to do with when and how puberty develops.
D. Menarche is considered within the normal range for girls if it appears between the ages of 9 and 15.
Answer: D
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The most plentiful neurons are the:
a. interneurons b. sensory neurons c. motor neurons d. glial neurons
The multiple-personality disorder was:
a. a form of psychosis. b. quite rare. c. a phenomenon unique to England. d. not a formal diagnostic label.
When John drives his car at night, he finds that he can barely see traffic and street signs if he looks directly at them. He can increase his visual sensitivity by looking at the signs
a. out of the side of his eye, because doing so focuses the image on the blind spot b. out of the side of his eye (using more rods) instead of focusing directly on them (using more cones) c. and squinting, which focuses the available light more precisely d. out of the side of his eye (using more cones) instead of focusing directly on them (using more rods)
Most children with Down syndrome learn to read, write, and perform simple arithmetic.
Answer the following statement true (T) or false (F)