Pregnant women typically need ________ additional calories a day, including extra protein.
A. over 1,000
B. 300 to 500
C. 600 to 700
D. 700 to 900
Answer: B
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Researcher Paul Ekman and his colleagues have suggested that there are six basic emotions. Which of the following is NOT one of these?
a. Disgust b. Jealousy c. Surprise d. Sadness
__________ procedures aim to make a person more aware of their heart-rate, blood pressure, and overall stress level.
a. PTSD b. Relaxation c. CBT d. Biofeedback e. Meditation
A single-blind study means that
a. the researcher will not know who is in which group. b. researcher expectations will not affect the results. c. only one independent variable will be manipulated. d. drugs will be used. e. participant expectations will not be different between groups.
Research shows that fetuses prefer ______.
A. their mothers' voices and nonnative speakers B. their mothers' voices and native speakers C. their fathers' voices and native speakers D. their fathers' voices and nonnative speakers