In the most basic sense, every idea, mood, memory, and behavior that an individual has ever experienced is a phenomenon.

Correct Biological

Explanation:

Biological phenomena is any evident event that occurs with living beings, or any biological transformation essential to life. It can be changes in their physiology, morphology or reproduction. These events may be clear to the senses or may require microscopic.

So we can say that emotions, moods, behavior, stress, love, angriness, happiness are events of the Biological phenomena, it causes many biological reactions inside our body like the tears and the adrenalin.

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.