B. the chromatids are pulled apart
The symbol Al+3 is a cation. Therefore giving us the correct answer being option B. cation.
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Along with neuropsychological assessment, brain imaging and recording techniques may be used to shed light on relationships between brain function and underlying abnormalities.
Brain imaging is technique used to image the structure (tumor or injury) and function (metabolic diseases and lesions) of the central nervous system.
The answer to number two is true
