Ruth is 78 years of age, and recently reported to her ophthalmologist that she has developed some changes in the way she sees colors. Which of the following age-related changes to the eye might best explain her experience??
a. ?The corneas in her eyes are changing in their thickness.
b. ?The lenses in her eyes are beginning to yellow.
c. ?The irises in her eyes are losing their elasticity.
d. ?The retinas of her eyes are losing photoreceptors.
ANSWER:
b
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Fill in the blank(s) with correct word
Which of the following statements about sexual attitudes and behaviors among U.S. young adults is true?
A) Most young adults, whether single, married, or cohabiting, report some type of persistent sexual problems. B) Adults in committed relationships are less satisfied with their sex lives than those individuals with many sexual partners. C) Frequency of sexual activity is significantly higher in homosexual relationships than in heterosexual relationships. D) Single adults have more sexual partners than those in committed relationships, but this does not translate into more sex.
If a female rat is ovariectomized and given T at birth, she will not perform lordosis for a male. Instead, when given testosterone, she will mount. In this case, the animal has experienced:
a. behavioral defeminization. b. behavioral masculinization. c. activational effects of estradiol and progesterone. d. organizational effects of testosterone.
Vision contributes to the experience of flavor at the level of the _____
A) ?OFC and insula B) ?insula and amygdala C) ?hypothalamus and insula D) ?OFC and amygdala