Bo turned left at an intersection and was nearly hit by an oncoming car. As he drove away from the intersection, neurotransmitters in his hypothalamus were released, triggering his pituitary gland to release . He began to perspire and he felt his heartbeat racing.

Oxytocin and vasopressin

Explanation:

It should be understood that the neurohormones in most mammals include oxytocin and vasopressin. And these two neurohormones are produced in the hypothalamic region of the brain and secreted into the blood by the neurohypophysis, which is part of the pituitary gland.

In this case, the neurohormone will help him to settle down after escaping an accident.

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.