For older men, the increase in the time it takes between erections is due to
A) the side effects of ED drugs such as Viagra .
B) memory loss.
C) male menopause.
D) a longer refractory period.
D
Psychology
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Twelve year old Jerry has an IQ of 75 on the original version of the Stanford Binet. His mental age is:
a. 8. b. 9. c. 10. d. 12. e. 16.
Psychology
The trichromatic theory states that:
A) the visual system treats triads of color as antagonistic to each other. B) three types of color feature detectors in the visual cortex are responsible for color perception. C) three types of cones exist, each sensitive to a certain range of wavelengths. D) species that detect ultraviolet light perceive three colors that are outside of the range of humans.
Psychology