Based on the principle of __________, to reduce the likelihood of transience you should study material you will be tested on in several shorter sessions, rather than in one big "cram" session

A characteristic or condition (such as smoking) that occurs with greater frequency in people with a disease (such as lung cancer) than it does in disease-free people is known as a:

A) pathogen. B) virus. C) risk factor. D) immunogen.

Why might later-born children be more popular with their peers?

a. They learn social skills by dealing with their older siblings. b. Their peers feel sorry for them. c. Their parents force them to interact with other children. d. none of these