Preschoolers who watch more than __________ hours of TV per day have a higher risk of __________.
A. 2; obesity
B. ½ hour; headaches
C. 1 hour; vision problems
D. 15 minutes; learning disabilities
Answer: A
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The complex molecule that forms the code for all genetic information is ______
a. DNA c. RNA b. messenger RNA d. monoamine oxidase
Caffeine, nicotine, amphetamines, and cocaine are members of a class of drugs known as ________
a. analgesics b. stimulants c. hallucinogens d. depressants
Which of the following statements is true of schizophrenia?
A. People with schizophrenia have enlarged hippocampi. B. The specific symptoms of schizophrenia are the same across cultures. C. People throughout the world have been found to suffer from schizophrenia. D. Schizophrenia is not included in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition.
Any differences in future development of monozygotic twins can be attributed only to _________ factors
a) genetic b) chromosome c) environmental d) DNA