Why do we need to breath 17000 a day

We need to breath every day and hat just happens to be the amount of times we breath, but a human can actually breath up to 30,000 times per day it all depends.

When you exercise, your body's cells need even more oxygen. That's why your heart beats faster and you breathe faster when you exercise. Your body ramps up these processes to provide the oxygenated blood that your body's cells need. ... Over the course of a day, that adds up to 17,000-30,000 breaths per day — or more...

Explanation:

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.