The hormone which is injected into diabetics is called INSULIN. Hormones are chemical messengers of the body and hence, when insulin is injected, it issues a message to lower the blood sugar level.
The human body is not unique to produce a smell – animals, birds and nearly all organisms have a smell attributed to them
Life on earth originated millions of years ago. Over these millions of years, the simplest of the organisms have evolved into the complex ones. EVOLUTION is the phenomenon which assures the continuity and survival of the organisms. Another important factor in the continuity of a species is the genetic material present in each organism, irrespective of its kind.