Answer
180
Explanation:
A triangle fully answer is 180*
Answer:
Air, Animles
Explanation:
The Air helps us live, and the Animles help us in al kindes of ways. One is food, Happiness and many other things.
The cardiac cycle is defined as the steps involving the conversion of deoxygenated blood to oxygenated blood in the lungs and pumping it by the heart to the body through the aorta. So i think it would be stable over the years unless u have factors that will affect the cycle depending on a persons health
Answer:
I would be happy to provide an answer if the photograph is viewable
Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere