Biology, 21.08.2019 01:30 laurarafferty13

Jim’s heart rate was monitored during periods of exercise and periods of rest. the graph shows the result of one 50-minute test.
which statement is an inference that can be made by using the graph?
jim’s heart rate was 60 beats per minute at the start of the test.
jim’s maximum heart rate during the test was 140 beats per minute.
jim’s heart rate increased steadily as he continued exercising.
jim’s heart rate decreased quickly after 30 minutes since he is in good shape.

Jim’s heart rate was monitored during periods of exercise and periods of rest. the graph shows the r

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