One effective method for decoding the definition of cardio respiratory, or any word, is looking at the root word. Cardio is Greek, and refers to the heart. Respiratory refers to breathing, which involves the lungs. So, cardio respiratory is the action of both the heart and the lungs.
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<h2>♨ANSWER♥</h2>
It is a direct dialog.
<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>
_♡_<em>mashi</em>_♡_
people have made them uncomfortable with themselves