Science reason english 2 doc

Graph 1

17. How long did it take for the resting heart rate to return after the exercising stopped?

a. 1 minute 15 seconds

b. 1 minute 30 seconds

c. 1 minute 45 seconds

d. 2 minutes

18. How long did it take for the heart rate to respond to the initial exercise?

f. 1 minute

g. 45 seconds

h. 30 seconds

j. 15 seconds

19. Which of the following is an accurate pattern found in Graph 1?

a. The recovery time is shorter than the time it took for the heart rate to peak, due to the increase in

exercise.

b. The recovery time is longer than the time it took for the heart rate to peak, due to the increase in

exercise.

c. The recovery time is equal to the time it took for the heart rate to peak, due to the increase in

exercise.

d. The recovery time was equal to the resting heart rate time.

120

160

140

100

80

60

40

0

20

012 45 3 6

Heart beats per minute (heart rate)

Time (minutes)

–ACT SCIENCE REASONING TEST PRACTICE–

289