We all get colds and flus sometimes. But what do we have today that can keep us from getting sick ? Write your ideas in this box.

Vaccines

Explanation:

Vaccines are small doses of the disease or virus itself that is used to make the body accustomed to fighting the disease or virus to be able to identify and kill the disease without the use of medication.

answer:

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; identity theft;