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When you run, you begin to breathe heavier and faster. Your
heart beats more quickly, bringing more oxygen to your cells.
Which organ systems are working together here?​


Sagot :

Answer:

the lungs

Explanation:

The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.