What is the normal heart rate of a 12-year-old before exercise, during exercise, and after exercise?

Explanation:

The normal resting heart rate should be 65-70 before exercise during exercise it can go to the 70-80 regions depending on wht type of exercise u do and ur workout routine

this disease is :

* endemic (present in a defined area that is a village)

* a bacterial infection (treated with antibiotic)

* communicable by contact (by the hands)

manu-porterage is the most common mode of transmission, it transmits germs from one individual to another via the hands. this concerns infections of exogenous origin.

endemic disease, or endemic disease, refers to a disease that is constantly present in a given population, often tied to a specific geographic origin, as opposed to a pandemic that is not a sporadic disease.

antibiotics are molecules that have the property of killing (bactericidal) or limiting the spread (bacteriostatic) of bacteria.