system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Z-value of an organism:
assistant
The correct answer is  Ans. C. Is the temperature change required for the D-value to change by a factor of tena. D value of an organism is the time needed at a certain temperature to kill 90% of the organisms in the medium,b. Z-value of an organism is the temperature change required for the D-value to change by a factor of ten