In the context of weight management, which of the following statements is true?
A) It is widely accepted that heredity plays a role in overweight in humans.
B) Efforts by overweight people to maintain a slender profile is complemented by the mechanism of adaptive thermogenesis.
C) Obesity is related to psychological factors but not to biological factors.
D) Obesity is related to biological factors but not to psychological factors.
A
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Which brain structure is proportionately larger in women than in men?
A. prefrontal cortex B. substantia nigra C. occipital lobe D. corpus callosum
An autoreceptor alters the output of ______.
A. the postsynaptic neuron B. the presynaptic neuron C. the sodium-potassium pump D. the sodium channels
In an experiment, the researcher was unintentionally talkative to one of the participant groups. What best describes the threat to internal validity and why is it a threat?
a. Randomness, since being talkative can make this particular group more relaxed and better able to perform. b. Participant-maturation interaction, since being friendly to one group can introduce a confound. c. History, since this unintended interaction was not part of the independent variable, a confound was introduced. d. Testing, since the other group might feel cheated for being treated more formally by the researcher, and this introduces counterbalancing.
When preschoolers are given tasks that are simplified and relevant to their everyday lives, they __________
A) cannot reason effectively B) do not infer others’ intentions C) do not display the illogical characteristics that Piaget saw D) cannot engage in reasoning by analogy about physical changes