________ is a complex molecule with a double helix shape, like a spiral staircase, and contains genetic information.
A. RNA
B. DNA
C. A ribosome
D. A chromosome
Answer: B
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The percentage of adolescents who are close to their siblings is approximately
13. 23. 33. 43.
Mark is trying to make a choice between asking Helen or Lorelei to a party this weekend. He's having a tough time deciding because both are equally appealing options. This is indicative of a(n) __________ conflict
a. vacillating c. approach-approach b. approach-avoidance d. avoidance-approach
Various researchers have found cultural differences in self-esteem among children. One
of the possible explanationsdiscussed in the text is a. differences in educational systems. b. differences in cultural character. c. differences in temperament. d. differences in child-rearing practices.
Which of the following behaviors is considered to be a type of body language?
a) Facial expressions b) Eye contact c) Gestures d) Nonverbal speech