a) respiration b) perspiration c) fermentation d) photosynthesis e) aging
2006-12-11 08:13:06 · 3 answers · asked by bedkkd 1 in Science & Mathematics ➔ Chemistry
Actually, the physical act of inhaling oxygen and exhaling carbon dioxide isn't a chemical change. What happens to the oxygen as it is absorbed by cells is, but not the actual act of respiration. Perspiration isn't a chemical change either. It's simply the release of liquid and salt by the body in order to cool the skin. There's no chemical reaction to perspiration. The obvious answer, aging, isn't a chemical change either. It's a life process that involves numerous changes to the body, but there is no defined "chemical change" of aging.
2006-12-11 08:25:12 · answer #1 · answered by mojo4395 2 · 0⤊ 0⤋
Aging - aging occurs b/c of the shortening of telomeres
All of the other processes involve exchange of gases, which are chemical changes
2006-12-11 08:16:39 · answer #2 · answered by penpallermel 6 · 0⤊ 1⤋
aging, dude, simple, aging doesn't change the chemical structure of somebody, just the physical appearance, simple
2006-12-11 08:20:17 · answer #3 · answered by ccmfreak101 2 · 0⤊ 0⤋