Vance is about to give a lecture but is worried that he is too nervous and will make mistakes. the yerkes-dodson law would predict that he will succeed only if his nervousness is at a level.

He will likely succeed if only his nervousness is at the medium level for this will allow Vance to overcome his task as the medium level is set to overcome medium tasks in which he is on right now with lecturing in having to be nervous of doing or having a mistake.

1. when the tempature rises,your sweat glands and then springs into action making perspiration. some sweat evaporates with your skin taling heat with it.2.some of the blood pumped by the heart travels by your lungs to get rid of carbon dioxide and pick up oxygen.3.saliva produces by, you drinking water which saliva is 98% of. when mucus builds up in your body it also creates saliva as well as, antibacterial compunds.4.when the core body tempature drops, the shivering reflex is triggered to maintain homeostasis. for example: when you get out the pool you start to shiver because it is cold.