Question
1. Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? (SC.912.N.1.1)
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1 point
Graph showing breathing rate before, during, and after exercise.
The x-axis is labeled "Exercise" and shows three stages: "Before," "During," and "After."
The y-axis is labeled "Breathing Rate (Breaths/min)" and ranges from 0 to 60.
Four lines represent different breathing rates.
Line A shows a peak breathing rate during exercise, a steep increase and decrease.
Line B shows a plateau breathing rate during exercise, remaining relatively flat during exercise.
Line C shows a decrease in breathing rate after exercise, decreasing steadily.
Line D shows a decrease in breathing rate after exercise, decreasing steadily, but more slowly compared to line C.
The lines intersect at a baseline breathing rate of approximately 30 breaths per minute.
The lines are marked with letters A, B, C, and D. Each line represents a possible response in breathing rate during, before or after exercise.
Line A
Line B
Line C
Line D
*
1 point
Graph showing breathing rate before, during, and after exercise.
The x-axis is labeled "Exercise" and shows three stages: "Before," "During," and "After."
The y-axis is labeled "Breathing Rate (Breaths/min)" and ranges from 0 to 60.
Four lines represent different breathing rates.
Line A shows a peak breathing rate during exercise, a steep increase and decrease.
Line B shows a plateau breathing rate during exercise, remaining relatively flat during exercise.
Line C shows a decrease in breathing rate after exercise, decreasing steadily.
Line D shows a decrease in breathing rate after exercise, decreasing steadily, but more slowly compared to line C.
The lines intersect at a baseline breathing rate of approximately 30 breaths per minute.
The lines are marked with letters A, B, C, and D. Each line represents a possible response in breathing rate during, before or after exercise.
Line A
Line B
Line C
Line D
Answers
GPT-4o mini
In the context of the effects of carbon dioxide levels in the blood on breathing rate during exercise, **Line A** best illustrates these effects. This line shows a steep increase in breathing rate during exercise, which corresponds to the body's heightened demand for oxygen and the necessity to expel carbon dioxide. The peak during exercise reflects the body's response to increased carbon dioxide production during physical activity, followed by a rapid decrease after the exercise period, aligning with the reduction in metabolic activity and decreased carbon dioxide levels.
Therefore, the correct answer is: **Line A**.
Therefore, the correct answer is: **Line A**.