Which of the following best explains why visual acuity declines during middle age?
a. The lens of the eye enlarges and becomes less flexible and less transparent.
b. The occipital lobe, the area of the brain that controls vision, becomes less efficient.
c. The retina of the eye becomes less pliable and malleable, therefore affecting acuity.
d. The phenomenon known as binocular vision becomes less efficient and slowly disappears.
Answer: A
You might also like to view...
Brad is struggling with his identity and the direction his life should take, but he cannot
decide what is best for him. His identity status is a. foreclosure. b. moratorium. c. identity diffusion. d. identity achievement. e. role confusion.
In the studies by Caspi and colleagues shown in Figures 2.6 and 2.7, a gene–environment interaction occurred when levels of maltreatment were associated with different outcomes (in this case, antisocial behavior or depression) for children with different _______
a. phenotypes b. gametes c. personalities d. genotypes