110 Coolster , gas & spark but no start. My GF's boy has a 2 yr old Coolster 110cc (Kazuma I believe but not 100%) Well it ran fine the other day...he rode it for an hour with a few breaks here and there.
Gas exchange is a biological process through which different gases are transferred in opposite directions across a specialized respiratory surface. Gases are constantly required by, and produced as a by-product of, cellular and metabolic reactions, so an efficient system for their exchange is extremely important. It is linked with respiration in animals, and both respiration and photosynthesis in plants.
Respiration include four processes: 1  Pulmonary ventilation (air in/out, gas exchanged in lungs) 2  External respiration (gas exchanged between blood and alveoli in lungs) 3  Transport of respiratory gases (transport of oxygen and carbon dioxide)  Internal respiration (gas exchange between blood and tissues)