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8 Klass Biologija Dragomilov Laboratornaja Rabota 6 Spishi.ru -

If your heart rate returns to near-resting levels within 3–5 minutes, your cardiovascular system is functioning normally. A slow recovery may indicate a lack of physical fitness. Evaluation of Results:

Laboratory Work №6: Changes in Heart Rate (HR) During Physical Activity

Sit quietly for 2–3 minutes. Measure your pulse for 15 seconds and multiply by 4. Example: 18 beats in 15 sec × 4 = 72 bpm . Activity: Perform 20 deep squats in 30–40 seconds.

Based on common curriculum standards found on educational platforms like Infourok , here is the standard structure and answers you would find for this lab.

Depending on your specific edition of the textbook, Laboratory Work №6 might alternatively be "The Composition of Inhaled and Exhaled Air." If your lab involves limewater and blowing through a straw, the answer is that exhaled air turns limewater cloudy because it contains more carbon dioxide than atmospheric air.

Sit down and measure your pulse again after 3 minutes of rest. Example: 75 bpm . Conclusion/Answers:

To observe how physical stress affects the circulatory system and determine the rate of recovery. Equipment: A stopwatch (or a watch with a second hand). Procedure and Typical Results:

If your heart rate returns to near-resting levels within 3–5 minutes, your cardiovascular system is functioning normally. A slow recovery may indicate a lack of physical fitness. Evaluation of Results:

Laboratory Work №6: Changes in Heart Rate (HR) During Physical Activity

Sit quietly for 2–3 minutes. Measure your pulse for 15 seconds and multiply by 4. Example: 18 beats in 15 sec × 4 = 72 bpm . Activity: Perform 20 deep squats in 30–40 seconds.

Based on common curriculum standards found on educational platforms like Infourok , here is the standard structure and answers you would find for this lab.

Depending on your specific edition of the textbook, Laboratory Work №6 might alternatively be "The Composition of Inhaled and Exhaled Air." If your lab involves limewater and blowing through a straw, the answer is that exhaled air turns limewater cloudy because it contains more carbon dioxide than atmospheric air.

Sit down and measure your pulse again after 3 minutes of rest. Example: 75 bpm . Conclusion/Answers:

To observe how physical stress affects the circulatory system and determine the rate of recovery. Equipment: A stopwatch (or a watch with a second hand). Procedure and Typical Results: