BIO 202 PhysioEx Lab Report Exercise 6: Cardiovascular Physiology Activity 3: Examining the Effect of Temperature on Heart Rate

2/20/26, 11:56 AM PhysioEx Exercise 6 Activity 3



PhysioEx Lab Report
Exercise 6: Cardiovascular Physiology
Activity 3: Examining the Effect of Temperature on Heart Rate
Name: Morris
Date: 20 February 2026
Session ID: session-

Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.

1 Organisms that usually maintain the same internal body temperature in spite of
environmental temperature changes are

You correctly answered: homeothermic.

2 The general name for the process that maintains the internal body temperature in humans
is

You correctly answered: homeostasis.

3 The electrolytes in a Ringer's solution are required to

You correctly answered: provide for autorhythmicity.

4 An internal body temperature that is above the normal range is

You correctly answered: hyperthermic.


Experiment Results
Predict Questions
1 Predict Question 1: What effect will decreasing the temperature of the Ringer's solution have
on the heart rate of the frog?

Your answer: decrease in heart rate.

2 Predict Question 2: What effect will increasing the temperature of the Ringer's solution have
on the heart rate of the frog?

Your answer: decrease in heart rate.

Stop & Think Question

1 What effect do you think a fever of 104°F would have on heart rate?
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