Answer:
Your nails can help determine the oxygen supply throughout your body because it has an affect on your life. Blue fingernails are caused by a low level or lack of oxygen circulating in your red blood cells. This condition is known as Cyanosis.
Explanation:
This means that there is not enough oxygen in your blood
Answer:
Kinda yes
Explanation:
This is a sign that you're becoming obese or is already.
that is true because children have faster respiratory rates than adults .
the answer to this question is actually the letter B
True. remember the phrase, use it or lose it?