sodium amytal test: anesthetize one hemisphere and check for language function dichotic listening test: report more digits heard by dominant half functional brain imaging: fMRI or PET used to see which half is active when performing a language test
The process of change by which new species develop from preexisting species over time? The process by which species change over time is evolution. The process by which new species develop from preexisting species over time is evolution.
The term New World is used in a biological context, when one speaks of Old World (Palearctic, Afrotropic) and New World species (Nearctic, Neotropic). Biological taxonomists often attach the New World label to groups of species that are found exclusively in the Americas, to distinguish them from their counterparts in the Old World (Europe, Africa and Asia), e.g. New World monkeys, New World vultures, New World warblers. The label is also often used in agriculture.