If you do not receive Social Security benefits, then you will need to sign up for Medicare by calling the Social Security Administration at 800-772-1213 or online at http://www.socialsecurity.gov/medicareonly/ . It is best to do it as early as possible so your coverage begins as soon as you turn 65.
Definition of exemplar for English Language Learners. : 1  an admired person or thing that is considered an example that deserves to be copied. : 2  a typical example.
However, the specifics of the two theories are different. Prototype theory suggests that a new stimulus is compared to a single prototype in a category, while exemplar theory suggests that a new stimulus is compared to multiple known exemplars in a category.xemplar Theory is a proposal concerning the way humans categorize objects and ideas in psychology.