To illustrate the idea of critical period in learning, Dr. Kuhl in her video presentation mentioned the study of Johnson and Newport which 'summarizes a lot of literature having to do with performance in a second language and phonological performance in a second language".

When discussing comparative and absolute advantage, which best describes specialization? developing expertise in certain types of production limiting the types of goods and services produced targeting specific consumers and retailers producing certain items for specific market segments the answer is: the act of limiting the kinds of goods and services produced

Why does c. wright mills identify critical thinking as one of the most important criteria for the development of intellectual craftsmanship? why is constantly being aware of the biased nature of your reactions and interactions (what c. wright mills calls self-reflexive) key to the development of that critical thinking? finally, why is keeping a file important, how can it lean to intellectual curiosity which can foster critical thinking and to develop a keen analytical mind?

Idont know any of these can anyone me