One of the following has been linked to an increase in left-handedness early in life.
A. prenatal exposure to ultrasound
B. prenatal exposure to x-rays
C. routine childhood immunizations
D. diet
Answer: A
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In what phase of the general adaptation syndrome reaction to stress does the body adapt to its high state of arousal in an attempt to cope with the stressor?
A) alarm B) resistance C) exhaustion D) fight-or-flight
If two groups are equal with regard to the dependent variable at the start of an experiment before the independent variable is introduced, we can assume that the F ratio would be:
a. 0 b. 1 c. >1 d. unknown
A friend who has been diagnosed with schizophrenia has recently isolated himself from others and avoids most social contact. In addition, he rarely shows any emotion
These changes in his behaviors are considered part of the ________ category of symptoms associated with schizophrenia. a. acute b. active c. positive d. negative
From an evolutionary point of view the oldest part of the brain is:
(a) the brain stem (b) the old mammalian brain (c) the cortex (d) none of the above