Recent NHTSA research indicates an overall fatality reducing effectiveness for air bags to be 11%.
Answer:
I could be wrong but, I'm pretty sure it's <em><u>cognition</u></em>.
Explanation:
Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure. ... There are four iron atoms in each molecule of hemoglobin, which accordingly can bind four atoms of oxygen. Globin consists of two linked pairs of polypeptide chains.
The answer is general decrease
As we got older, our metabolic system will tend to become slower. This makes older people tend to have lower heart rate compared to younger ones because you need your blood to circulate the oxygen all over your body if your body is doing a metabolism process.
No u shouldn't leave it open.
It can be really dangerous.
For example: It might sound crazy but imagine a rodent eating the hose that the gas passes through,the gas leaks and dangerous things can happen cuz propane is flammable especially when mixed with air(oxygen).
