By the end of the third week of prenatal development, the neural tube begins to form. This structure will eventually become __________.
A. the skull and torso
B. the legs and arms
C. the spinal cord and brain
D. the lungs and the digestive system
Answer: C
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When the neural tube fails to close in the middle or lower regions during the embryonic stage, it leads to a neural tube defect such as __________.
A. Down syndrome B. PKU C. spina bifida D. brain injury
Which of the following people is experiencing a state of drifting consciousness?
a. Chandler is in the dreaming state of sleep. b. Phoebe is engrossed in watching a movie. c. Joey's consciousness changes as he meditates. d. Rachel is having hallucinations from taking drugs. e. Ross is daydreaming while he waits to see the dentist.
Rita is incredibly aggressive on the hockey rink but is very nice to everyone when she isn't competing. What term best describes Rita's "on-ice" aggression?
a. Relational aggression b. Hostile aggression c. Neglect d. Instrumental aggression
A typical episode of major depression last __________, with very severe cases lasting as long as severalyears
a. 3 months b. 6 months c. 9 months d. 1 year