Question

QUESTION 7
After you have run a long distance, you will breathe faster and your heart beat increases.
7.1 Briefly explain how oxygen moves through the body from the moment it enters the mouth
until it is combined with food inside the cells to produce energy
7.2 After exercising you breathe faster. Explain why this happens.

Answer 1

Answer:

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Explanation:

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Answer 2

Oxygen is breathed in and then goes thought the Circulatory system.
Removing all other gases from the air then it is brought to the lung, after that the lungs give the oxygen to the blood cells and this allows the blood cells move the blood all around the body