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Ventilation is the process by which air moves in and out of the lungs.Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs.
Cell membranes are not solid structures.
Answer:
Compare:
They are all natural disasters that cause a lot of damage.
Contrast:
Hurricanes are storms that cause high waves and can get into citys and towns and cause a lot of water damage.
Tornadoes are tunnels of wind that cause wind damage.
Blizzards are storms with strong winds and snow that can cause water, and wind damage!
Hope this helped :)
Explanation:
