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Biology, 06.11.2020 19:00 salasivis

HELP M 1. What happened to your breath rate and heart rate as you exercised? *

2. Why do you think the respiratory system took in more oxygen when you were running? *

3. Why do you think the circulatory system was pumping blood faster when you were running? *

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HELP M 1. What happened to your breath rate and heart rate as you exercised? *

2. Why d...

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