In WWI the allies and Germans did not shell each others' supply lines. This is an
example of
(a) social facilitation
(b) the tragedy of the commons
(c) cooperation
(d) paradigm related behavior
(e) all of the above
C
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Whether a neuron fires or not depends on _____
a) whether it is an excitatory neuron. b) the sum of excitatory and inhibitory neurotransmitters it receives. c) what type of neurotransmitter the neuron makes. d) whether the neuron is myelinated or not.
Which of the following statements about the widespread belief that intelligence inevitably declines in middle and late adulthood as the brain deteriorates is true?
A) Many early cross-sectional studies showed an age-related increase in cognitive functioning. B) Cohort effects do not appear to affect the appearance of age-related intelligence declines in middle adulthood. C) Widespread testing of college students and soldiers in the 1920s revealed an age-related increase in intelligence in middle adulthood. D) When adults are followed longitudinally, their verbal scores rise during early adulthood and decline gradually during middle adulthood.