The International Labor Organization has estimated that about 73 million children ages 5–11 are employed worldwide. What percentage of these children are employed in developing countries?
a. 35%
b. 55%
c. 75%
d. 95%
Answer: D
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When your toes touch something, you feel the sensation 1/20 of a second later. Why? a. The receptors in the toes are slow to react to a stimulus
b. Any action potential takes time to reach the brain. c. You cannot feel something until your nervous system synthesizes neurotransmitters. d. You were probably thinking about something else.
Materialistic monism is the belief that the mind is a phenomenon produced by the workings of the nervous system.
Answer the following statement true (T) or false (F)
The finding that prenatal viral exposure, rhesus incompatibility, and early nutritional deficiency are associated with an increased risk of developing schizophrenia indicates that
a. genes do not play a role in vulnerability to schizophrenia. b. anything that interferes with normal brain development might lead to a greater risk of schizophrenia. c. environmental factors are more important than genetic factors when it comes to determining who is likely to develop schizophrenia. d. the results of twin studies reflect the impact of a shared prenatal environment, not shared genes.
Propranolol blocks adrenaline receptors in the __________, which may weaken memories of fearful stimuli.
A. thalamus B. hypothalamus C. pons D. amygdala