Oxygen and Carbon Dioxide are the two gases being exchanged in the alveoli. Carbon Dioxide diffuses blood into the air, and oxygen diffuses from the air in the alveoli into the blood.
Answer: In addition to slowing the overall expansion, gravity causes local clumping of matter into stars and galaxies. ... Within the Local Group, the gravitational interactions have changed the inertial patterns of objects such that there is no cosmological expansion taking place.
Explanation:
It is accually prokaryotic