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.
What is an alien species? Alien species (also called introduced, exotic, non-native, or non-indigenous species) are species of animals or plants, or any other types of organism that are introduced to a new area through the accidental or deliberate actions of humans.