Dora has been asleep for about an hour and a half. Her heart beats faster, her breathing is uneven and quick, and her eyes move back and forth with the eye lids shut. Dora has most likely entered what stage of sleep

Martin, a 32-year-old human relations administrator at a university, believes that all professors over age 50 are incapable of learning the new educational technologies and are content to keep presenting their same "tired, boring" lectures. he often expresses these views to other administrators and does not encourage any of the "older" faculty members to attend professional development meetings related to new teaching approaches nor does he suggest that the university send them to any of the technology conferences. martin is exhibiting