At about 21 days, two ridges appear in the embryo and fold to make up the neural tube, which develops into the
a. nails, hair, and teeth.
b. digestive system, liver, and pancreas.
c. brain and spinal cord.
d. circulatory system, muscles, and skeleton.
c
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Seventeen-year-old Janell has not yet committed to an identity but she is exploring her alternatives. Janell is excited about her future, is open to experience, and is an active problem solver. Janell demonstrates characteristics of identity ______.
A. moratorium B. achievement C. foreclosure D. diffusion
Research suggests that people are better at _____ reasoning than at _____ reasoning.
A) practical; theoretical B) theoretical; practical C) theoretical; applied D) practical; applied
Answer the following statement(s) true (T) or false (F)
The presence of individual differences across groups is the greatest concern for within-subjects experiments.
Halyna is a college sophomore who enjoys sun tanning. When is she most likely to begin to protect herself from the harmful effects of the sun?
a. When she is exposed to two-sided arguments about exposure to the sun. b. When she is warned about the risks to her appearance (e.g., wrinkling of her skin) from the sun. c. When she is warned about the risks to her health from the sun. d. All of these.