Which of the following objects would evolutionary psychologists consider to most likely be

Since natural selection can only act on characteristics that already exist,

__________ provides the raw material on which natural selection can act. a. retention b. extension c. fixation d. generation e. variation

Schools in which the curriculum and teaching style respond to the evolving needs and capabilities of students are said to have

A) a temperate climate. B) a good stage-environment fit. C) constructive tracking. D) self-righting tendencies.