Question 11 mark
The graph shows a runner's heart rate. Why has it risen from 68 to 84 by minute 0, before she has started running?
| Category | Heart rate (bpm) |
|---|---|
| -2 | 68 |
| -1 | 68 |
| 0 | 84 |
| 1 | 120 |
| 2 | 145 |
| 3 | 150 |
| 4 | 150 |
| 5 | 150 |
| 6 | 120 |
| 7 | 95 |
| 8 | 80 |
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The graph shows a runner's heart rate. Why has it risen from 68 to 84 by minute 0, before she has started running?
| Category | Heart rate (bpm) |
|---|---|
| -2 | 68 |
| -1 | 68 |
| 0 | 84 |
| 1 | 120 |
| 2 | 145 |
| 3 | 150 |
| 4 | 150 |
| 5 | 150 |
| 6 | 120 |
| 7 | 95 |
| 8 | 80 |