Question

what does the brein do when carbon dioxide level rises in the blood​

Answer 1

Explanation:

Explanation:Now, in eLife, Daniel Mulkey of the University of Connecticut, Thiago Moreira of the University of Sao Paulo and colleagues – including Virginia Hawkins as first author – report that elevated levels of carbon dioxide (a condition known as hypercapnia) cause the blood vessels in the brainstem to be

Answer 2

Explanation:

Now, in eLife, Daniel Mulkey of the University of Connecticut, Thiago Moreira of the University of Sao Paulo and colleagues – including Virginia Hawkins as first author – report that elevated levels of carbon dioxide (a condition known as hypercapnia) cause the blood vessels in the brainstem to become narrower, while the blood vessels in the rest of the brain become wider (Hawkins et al., 2017).