In which condition will bacteria grow rapidly? A.
a pH range between 9.8-8.9
B.
a pH range between 8.9-7.6
C.
a pH range between 7.5-4.6
D.
a pH range between 5.6-3.2
E.
a pH range between 4.2-1.9

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.