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Students hypothesized that blood pressure and pulse rate would decrease in response to elevated body temperatures. They gathered the experimental data shown.

Did the results of the experiment support the students' hypothesis?

A. No, blood pressure and pulse rate decreased with body temperature.
B. Partially, blood pressure decreased with body temperature but pulse rate increased.
C. Yes, blood pressure and pulse rate increased with body temperature.
D. Partially, blood pressure increased with temperature but pulse rate decreased.

[tex]
\[
\begin{array}{|c|c|c|}
\hline
\text{Temperature (degrees F)} & \text{Blood Pressure} & \text{Pulse Rate} \\
\hline
98.6 & 120/80 & 70 \\
\hline
98.7 & 115/78 & 73 \\
\hline
98.9 & 113/74 & 78 \\
\hline
99.1 & 111/74 & 84 \\
\hline
\end{array}
\]
[/tex]

Answer :

Let's analyze the data provided about the body temperature, blood pressure, and pulse rate. The goal is to determine if the results support the students' hypothesis that both blood pressure and pulse rate would decrease with elevated body temperatures.

Here's the experimental data:

1. 98.6°F
- Blood Pressure: 120/80
- Pulse Rate: 70

2. 98.7°F
- Blood Pressure: 115/78
- Pulse Rate: 73

3. 98.9°F
- Blood Pressure: 113/74
- Pulse Rate: 78

4. 99.1°F
- Blood Pressure: 111/74
- Pulse Rate: 84

Step-by-Step Analysis:

1. Blood Pressure:
- As the temperature increases from 98.6°F to 99.1°F, blood pressure readings decrease:
- From 120/80 to 115/78 to 113/74 to 111/74.
- This shows that blood pressure decreases as body temperature rises.

2. Pulse Rate:
- As the temperature increases, pulse rate readings increase:
- From 70 to 73 to 78 to 84.
- This shows that pulse rate increases as body temperature rises.

Conclusion:

- The students hypothesized that both blood pressure and pulse rate would decrease with an increase in body temperature.
- The experiment shows that while blood pressure did decrease with higher temperatures, the pulse rate actually increased.
- Therefore, the results of the experiment partially support the students' hypothesis. Specifically, blood pressure decreased with an increase in body temperature, but pulse rate increased.

Final judgment: The results partially support the hypothesis—blood pressure decreased with body temperature, but pulse rate increased.

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Rewritten by : Barada