you didn't have any options to choose but I would describe the atmosphere as <span>the envelope of gases surrounding the earth or another planet.</span>
<span>Contraction of the respiratory muscles causes the thoracic cavity to "Decrease" in volume
Hope this helps!</span>
A) ADP>ATP
This answer is 100% correct I took the test.
I believe it’s cellular respiration.
Whenever there is one or more carbon covalently bonded with other atoms
