Words can be rearranged to form an infinite variety of meaningful sentences. This represents the characteristic of language called

One-year-old Celia has come to expect that when she cries, her mother will respond quickly and take good care of her. One-year-old Shannon doesn't know what her mother's reaction to her cries will be. Celia and Shannon differ in their

a. display rules. c. internal working models. b. social referencing. d. systematic desensitization.

Name three medical tests that men should have beginning at age 30. Name the ages at which they should include these in their annual physical exams

What will be an ideal response?