The most accurate statement is Inclusion and exclusion criteria are always needed in some form.
Inclusion criteria are the prospective subjects characteristics that should be taken into consideration in the study.
Exclusion criteria are set of predefined definitions commonly used to identify subjects who will not be included or those characteristics that disqualify prospective subjects for the study to be included
The answer is the fight or flight response.
The fight or flight response is a survival mechanism in the body in the nervous system. It is how we respond to a stressful situation and is there to protect us from harm. Therefore it is not a risk factor for violence. It's our bodies natural way to protect us from violence.
The other choices are sadly all risk factors for violence.
Answer:Of the more than 7,000 chemicals in tobacco smoke, at least 250 are known to be harmful, including hydrogen cyanide, carbon monoxide, and ammonia (1, 2, 5). Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer. Explanation: