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.
Stages. When succession first begins, pioneer species are the first to colonize the new area. Pioneer species are usually fast-growing, opportunistic, and able to disperse easily. These are called r-selected species.