What is the difference between a coroner and a medical examiner? where does the term coroner come from?

The correct answer would be - their selection process and their professional status.

Explanation:

A medical examiner is someone that performs an autopsy on the other hand coroner does not perform it. The medical examiner needs to be a forensic pathologist while coroner does not require such qualification.

The major differences that differentiate the medical examiner and coroner are their selection process and their status professionally. Medical examiners have required a board certification in a medical specialty while coroners are elected and not required any professional training.

Coroner term comes from the Anglo-Norman coroner, which is derived from the corouner or "crown."  

Thus, the correct answer is - their selection process and their professional status.

it is very expensive

explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.