keena is starting a new job that requires her to learn many policies and procedures. she had to study a large handbook and pass an exam prior to officially starting to work. she studied for weeks and passed the exam, but then got sick the day before she was supposed to work her first shift. how would the field of psychoneuroimmunology explain why keena got sick?

Why are low-lying lands more suitable for agriculture than hilly areas?

Explain how tectonic plate movement creates geological events and features.

Suppose you are a freshmen in college and you have not declared a major. one reason you enrolled at your respective college was the school's vibrant social life. at the same time, you want to balance your academic life because you know that your grades will matter for graduate school or job applications.you decide to forgo partying for two hours to study for an upcoming economics exam. in your first semester's principles of economics class, you learn that the enjoyment you would have received from partying is an example of a(n)