SIRS was defined as fulfilling at least two of the following four criteria: fever >38.0°C or hypothermia <36.0°C, tachycardia >90 beats/minute, tachypnea >20 breaths/minute, leucocytosis >12*109/l or leucopoenia <4*109/l.
The muscles of the ventricles depolorize.
Answer:
B. a substance that sends the immune system into action
Explanation: