Which of the following is the correct order in which light passes through the structures of the eye?
A) lens, pupil, cornea
B) lens, cornea, pupil
C) cornea, lens, pupil
D) cornea, pupil, lens
Answer: D
Rationale: Light enters the eye through the cornea and passes through an opening called the pupil. Behind the pupil is the lens, a clear structure that focuses light onto the back of the eye.
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Your textbook discusses the early history of cognitive psychology. According to this discussion,
a. Hermann Ebbinghaus opposed cognitive psychology because it did not pay enough attention to emotions. b. Mary Whiton Calkins studied people's introspections about nonsense words. c. William James suggested that our everyday cognitive processes are passive, rather than active. d. Wilhelm Wundt emphasized that introspection could provide useful information, if participants were well trained.
Amniocentesis should not be conducted before the ______ week of pregnancy, as it may increase the risk of miscarriage.
A. 15th B. 20th C. 27th D. 30th
H0 is to Ha as _____ hypothesis is to _____ hypothesis
a. null; alternative b. alternative; null c. one-tailed; two-tailed d. two-tailed; one-tailed
Somnambulists are individuals who
a. are potential victims of sleep apnea. b. experience insomnia. c. have taken too many sleeping pills. d. walk in their sleep.