Although the term "color blind" is often used to refer to people who have difficulties with their perception of color, a true monochromat (person who does not see any color at all) is very rare. Most people with color blindness are called _____ and are missing only one type of cone.
A) dichromats
B) trichromats
C) presbyopes
D) tetrachromats
Answer: A
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Itching is primarily the result of ____
a. bad circulation b. baby powder c. histamine release d. substance P release
Unconscious processes that utilize self-deception to reduce anxiety are called:
a. defense mechanisms c. reality principles b. unconscious motivations d. free associations
A leading reason for the rising median age of first marriage among today’s emerging adults is thought to be
a. the length of time it takes currently to complete education and job training. b. a poor economy, leading to a high unemployment rate of people age 25-30. c. general emotional immaturity. d. a reluctance to commit to long-term relationships.
When Hans Selye injected laboratory rats with saline (salty water), what happened to the rats?
A. Nothing; saline is harmless and only used as a control condition. B. Nothing; rats recover quickly from stress because they are not prone to anxiety as humans are. C. They developed ulcers, because saline has since been discovered to have negative health consequences. D. They developed ulcers, because stress directly affected their physiology.