Why do African Americans have an elevated risk for developing sickle-cell anemia?
a) Their diet is conducive to the disease.
b) They have very high levels of oxygen in the blood.
c) They are prone to produce elevated amounts of cholesterol.
d) They are more likely to carry the recessive gene for the disease.
d
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In which of the following disorders is a person overwhelmed by a jumble of thoughts, sensations, images, and feelings that cannot be filtered out because of an impairment in selective attention?
a. a dissociative fugue state b. post-traumatic stress disorder c. schizophrenia d. the psychopathic personality
When female bodybuilders take steroids, they often find themselves ____
a. having developmental problems c. growing less body hair b. becoming less aggressive d. losing breast tissue
Many scientists believe that humans are biologically predisposed to be helpful, to share, to cooperate, and to be concerned for others
Indicate whether the statement is true or false
Single-unit recording requires:
a. A cannula b. A microelectrode c. An array of electrodes d. None of the above