Answer: The answer is variable.
Explanation: Scientists may do a start out hypothesis on the info they have. But if something changes in that experiment, it is the Variable.
Hope this helps!
THe hospital would be the best choice.
Explanation:
60 - 70% of maximum heart rate: This zone provides the same benefits as the healthy heart zone, but is more intense and burns more total calories. The percent of fat calories is remains up to 85% in this zone.
Answer:
I am pretty sure that the correct answer is smallpox but I'm not too sure.
