Which of the following statements is true about sexual orientation?
A) Adoptive relatives are just as likely as biological relatives to share a homosexual orientation.
B) Male homosexuality tends to be more common on the paternal than the maternal side of families.
C) The evidence to date suggests that genetic and prenatal biological influences are largely responsible for homosexuality.
D) One gene-mapping study found that among 40 pairs of homosexual brothers, 82 percent had an identical segment of DNA on the Y chromosome.
C
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Dr. Catson has developed a theory to explain emotions, which focuses on how emotions result from the interpretations we make of the stimulus. Dr. Catson's theory would be considered a(n):
A. cognitive appraisal theory B. arousal theory C. peripheral theory D. feedback theory
The ion that is mainly responsible for maintaining the positive charge found in the extracellular space of a neuron at rest is ______.
A. potassium B. sodium C. chlorine D. calcium
One day, in the midst of his babbling, baby Chad uttered the sound "mama" in the presence of his mother. Chad's mother screamed in delight. This noise startled baby Chad; he stopped uttering that sound for quite some time, illustrating the effects of:
A) positive reinforcement. B) negative reinforcement. C) positive punishment. D) negative punishment.
Which memory system has an unlimited capacity and can keep information for minutes or decades?
a. Short-term memory b. Long-term memory c. The sensory register d. Working memory