Groups are determined by PRECIPITIN test, serologic test to measure a specific reaction between antigen (C carbohydrate, located in the cell wall) and antibody which results in a visible precipitate. Group A Streptococci (Streptococcus pyogenes) is among the most important human pathogens.
Answers.comÂ® is making the world better one answer at a time. Striking an object is the leading cause of pwc accidents on boats.
Personal Watercraft Operation and Regulations. A personal watercraft (PWC) is defined as a type of motorboat which is specifically designed to be operated by a person or persons sitting, standing, or kneeling ON the vessel rather than INSIDE the vessel. The term PWC includes jet skis, wet bikes, etc. Any person being towed by a PWC is considered an occupant of the PWC, and is required to wear a life jacket. Educational Requirements for Operating a PWC