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.
A pioneer species is a species that is first to establish itself inan area where nothing is growing-or in an area that has beendevastated by fire,flood, plowing etc. These speâ¦cies are usuallyannuals, disappearing after the second year when perennials takeover.