Increase in heat rate and mental alertness in response to moments of stress, such as a traffic accident, is usually caused by a release of

Increase in heat rate and mental alertness in response to moments of stress, such as a traffic accident, is usually caused by a release of

adrenaline 

1. b vitamins2. vitamin k3. vitamin d4. examples are walnuts, seeds, tofu5.  total fat, saturated fat, trans fat, cholesterol, sodium, total carbohydrate, dietary fiber, sugars, protein, vitamin a, vitamin c, calcium, and iron.6. 11257. they have to contain reliable information8. less than 10%  9. i didnt read the course so im not surehope that : p

Lightning would be your answer