Question

By breathing in and out through the nose you absorb Oxygen around 15%

better when compared to mouth breathing, meaning you provide more
"food" for the brain, which leads to better grades in school*
True
False

Answer 1

I need this answer too and the one that put it there wasnt very clear can you help me is it true or false

Step-by-step explanation:

Answer 2

The contribution of bronchial blood flow to lung gas exchange can be assumed to be negligible.

Conclusions:

The lung consumes about 5% of whole-body oxygen uptake.