The person is most likely experiencing c.) resting heart rate
Answer:
it effects your nuerons.
Explanation:
they make u think things or effect with its chemical balance. is 2 ways.
I would go with D because if the person doesn't answer it's best to know what to do before hand if it happens so you don't get in trouble.
The blood brings oxygen to the body cells<span> and takes away their carbon dioxide. The blood that travels </span>back<span> to the </span>heart<span> and </span>lungs<span> is </span>dark red<span>. It has picked up carbon dioxide from the </span>body cells<span>, and it has left most of its oxygen with the cells.
</span><span>http://lsa.colorado.edu/essence/texts/lungs.html
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