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.
The major cause of clutch failure is excessive heat. Excessive. heat generated between the flywheel, driven discs, intermedi-. ate plate and pressure plate can cause the metal to flow and. the material to be destroyed. If this occurs, the clutch can. burst which can cause property damage, serious bodily injury. or death.