The thickness of the cortex of children with extremely high intelligence peaks at about age ______

Your text highlights which of the following points in discussing children's reasoning about living things?

a. children who have been trained in the scientific classification of living things show improvement in logical reasoning skills and score higher on IQ tests than children with no such training. b. children who have been trained in logical reasoning are better able to learn specific biological content such as how the digestive system and circulatory system are interconnected c. children often have trouble understanding that animals can engage in internal processes such as healing that plants cannot d. children often think living things are built to fulfill specific human purposes and often have trouble knowing whether plants are alive

Ellen seeks the help of a professional because she feels much anxiety. The therapist helps her identify one major stressor, her relationship with her brother. Which of the following is the least effective way for Ellen to reduce the impact of this stressor?

a. ?Ellen can learn to believe that she has control over situations with her brother. b. ?Ellen can learn to predict when situations involving her brother will be stressful. c. ?Ellen can learn how to ignore her brother whenever he is around. d. ?Ellen can change the way in which she interprets her brother's actions.