Answer:
How long can food that requires time-temperature control be left in the danger zone?
maximum of 1 hour
Explanation:
The required time frame for a food with time-temperature control is maximum of 1 hour, if it exceeds this, spoilage might occur as a result of the contamination by the micro-organism. The danger zone simply means the time spoilage begins to occur.
What property makes the normal pacemaker region of the heart function as a pacemaker?
The property of the normal pacemaker region is able to provide a normal setting for the heart to beat. It allows the heart to beat at a regular rate.
