Federalism definition IN YOUR OWN WORDS BRAINLIEST WILL BE MARKED!!!

The definition of federalism is a mixture of government that has been put together all within a federal government, and then just a normal general government. This is now put into a system both combined together and given a share amount of powers. Hope this helped!

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d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

answer; the parasympathetic nervous system;