At the last minute, Alison decided to book herself a trip to Vietnam. With no understanding of the language, the crowded streets and shops were a sea of confusion to her. But looking at the faces around her, Alison could easily tell when people were:
A. happy.
B. angry.
C. surprised.
D. afraid.
Answer: A
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A human trait is influenced by a single pair of genes, with "T" representing the dominant gene and "t" representing the recessive gene. Joe (genotype Tt) and Meg (genotype Tt) decide to have children. According to the principles of Mendelian heredity, what percentage of their children would exhibit the trait?
a. 25 b. 50 c. 75 d. 100
Some data indicates that exercise can increase a protective substance that may enhance hippocampal activity and memory. This substance is known as
a. conanatrophic factor. b. brain-derived neurotrophic factor. c. exercise-derived memory factor. d. stress-derived neurotrophic factor.
Which approach below most closely blends macrosystem change with a concern for individual wellness?
a. encouraging students in schools to eat healthy foods b. advertisements advising "responsible drinking" c. holding a bicycle race to promote fitness d. banning smoking in public places
A monkey will huddle next to a cloth "mother" rather than a wire "mother" when scared, even when it was nursed from the wire "mother." This is an example of the ______ motive
a. exploration c. activity b. manipulation d. contact