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

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

Answer :

To determine if the experiment's results support the students' hypothesis, let's carefully examine the provided data. The hypothesis is that both blood pressure and pulse rate would decrease with an increase in body temperature.

Here is a breakdown of the data and the trends observed:

1. Temperature vs. Blood Pressure:
- At 98.6°F, the blood pressure is 120/80.
- At 98.7°F, the blood pressure is 115/78.
- At 98.9°F, the blood pressure is 113/74.
- At 99.1°F, the blood pressure is 111/74.

Observations: As the temperature increases from 98.6°F to 99.1°F, the blood pressure readings consistently decrease (120/80 to 111/74). This indicates that blood pressure decreases with an increase in body temperature.

2. Temperature vs. Pulse Rate:
- At 98.6°F, the pulse rate is 70.
- At 98.7°F, the pulse rate is 73.
- At 98.9°F, the pulse rate is 78.
- At 99.1°F, the pulse rate is 84.

Observations: As the temperature increases from 98.6°F to 99.1°F, the pulse rate increases (70 to 84). This indicates that pulse rate increases with an increase in body temperature.

Conclusion:
The results partially support the students' hypothesis. While the blood pressure decreases as expected, the pulse rate actually increases with an increase in body temperature. Hence, the accurate conclusion is:

Partially, blood pressure decreased with body temperature but pulse rate increased.

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Rewritten by : Barada