In his book The Expression of Emotions in Man and Animals, Charles Darwin takes the position that emotions
a. are learned behaviors.
b. develop through observation and imitation.
c. are maladaptive.
d. evolved.
Answer: d. evolved.
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Pain messages transmitted to the brain through the fast pathway are associated with ____, while messages transmitted through the slow pathway are associated with ____
a. external; internal b. internal; external c. sharp pain; a longer-lasting aching pain d. a longer-lasting aching pain; sharp pain
At what point of fertilization does implantation in the uterus typically occur?
a. Within the first 24 hours after fertilization b. Within 72 hours of fertilization c. Approximately 5-8 days after fertilization d. Approximately 10-14days after fertilization
A leukocyte attacks when it finds a cell with foreign ____
a. antigens b. contours c. chromosomes d. neurotransmitters
Which of the following is generally NOT considered a possible cause of orgasmic difficulty in women?
a. Fear of pregnancy b. Drinking too much alcohol c. A negative attitude toward sex d. Excessive concern about achieving orgasm