By about 12 months, most infants
a. begin to use intonation in their language
b. build a vocabulary of one-word phrases
c. begin to distinguish, in their language, between themselves and others
d. begin to form two- and three-word sentences
e. begin to form four- and six-word sentences

Reasoning based on the ease with which we can bring something to mind involves the use of the heuristic

The tea party movement is a. an official third party that challenges both democrats and republicans in national elections. b. an organized challenge to incumbents in the republican party by the most conservative wing of the republican party. c. an organized challenge to incumbents in the democratic party by the most liberal wing of the democratic party. d. an offspring of the green party that runs for state and local office in many midwestern states. e. the now defunct party that gave way to the republican party at the end of the “second party system.”

The american public was excited by the invention of the railroad system. true false