3reasons why determining cause of death can be difficult

Well one reason is if the body's been changed (like by fire or mutilation or something). Another reason is if the patient has maybe a gunshot wound but also drugs in his bloodstream it can be hard to say which happened first: overdose or shot. And another reason might be whether it's suicide or murder. Some things about the body might say homicide and some might say murder. Just some things I thought of, hope that helps!
 

Nerves are problay the number 1 thing in the body

Ithink the answer is b
not sure