Section One Logical Reasoning

Some biologists believe that the capacity for flight first developed in marine reptiles, claiming that feathers are clearly developed from scales. Other biologi...

Studies have shown that, contrary to popular belief, middle-aged people have more fear of dying than do elderly people. Each of the following, if true, contribu...

Historian: Leibniz, the seventeenth-century philosopher, published his version of calculus before Newton did. But then Newton revealed his private notebooks, wh...

For a ten-month period, the total monthly sales of new cars within the country of Calistan remained constant. During this period the monthly sales of new cars m...

Because addictive drugs are physically harmful, their use by athletes is never justified. Purists, however, claim that taking massive doses of even such nonaddi...