Because of an eye injury, you have to temporarily wear a patch over one eye. Using your uncovered eye, you notice that there is a small region of the visual field where you cannot see anything. This is known as
A. temporary blindness.
B. retinal discontinuity.
C. retinal sympathy.
D. the blind spot.
Answer: D
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Who among the following individuals is likely to need the least amount of sleep?
A) George, a 90-year-old man who lives with his family B) Ali, a 12-year-old boy who goes to school C) Tanya, a 30-year-old woman who recently changed her job D) Soha, a 17-year-old girl who dropped out of school
High levels of maternal stress are harmful to the fetus because
a. maternal stress can result in postpartum depression. b. a stressed mother will not love her infant. c. stress hormones divert blood flow from the fetus and weaken the mother's immune system. d. stress can harm the mother's liver.
Proactive interference refers to situations in which
a. early childhood memories are extremely difficult to remember. b. the retrieval cues that exist facilitate memory. c. previously acquired information makes it more difficult to acquire new information. d. newly acquired information makes it more difficult to remember older information.
In which of the following ways does HIV-associated neurocognitive disease (HAND) differ in children versus in adults?
A. HIV effects on the nervous system are seen quickly in children, but appear only at later stages of the disease in adults. B. HIV does not affect the nervous system in children, but does affect the nervous system in adults. C. HIV effects on the nervous system occur at late stages of the disease in children, but appear right away in adults. D. HIV affects the nervous systems of children, but has no impact on the nervous system in adults.