Can not be determined
BMR is known as Basal Metabolic Rate which requires information about person's height, weight, age and gender to determine the number of calories burned by a person in a day.
But here only number of calories i.e. 1300 is given which is not enough to find out Alex's Total Energy Expenditure (TEE) as there is no detail about his height, weight and age is given.
Average BMR in the USA:
For Women it is 1493 calories.
For Men it is 1662 calories.
BMR is different from BMI (Body Mass Index) because to find out body mass index only the data related to height and weight is required.
and your welcome!
Answer:
When S mutans, lactobacilli, and other plaque species were compared in vitro for their ability to ferment sucrose at different pH values, S mutans was found to be more active than the other bacteria at pH 5.0, and thus, it is probably most active in vivo at the very pH at which the teeth begin to demineralize.
