Medical Quiz

Circulation and Excretion Quiz

What regulates human respiration rate?

A. oxygen levels

B. carbon monoxide levels

C. carbon dioxide levels

Select your answer:
A  B  C  D  E 


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Other quiz: Illnesses and Diseases in Caregiving

Another name for germs because they are so tiny.

A. carbohydrates

B. microbes

C. protons

D. amoebas