If He should set His heart on it, if He should gather to Himself His Spirit and His breath, all flesh would perish together, and man would return to dust.
Biology is the science devoted to the study of biological life.
By observing plants and animals in their natural environment and also in agricultural settings, intelligent humans have for thousands of years been learning much about the characteristics of living things. Modern biological science has refined the process of observation in nature and in addition under laboratory conditions. Much has been learned about life. It would seem that any scientific discipline would include a precise definition of the object of study, but complete agreement on the definition of life has never been attained, primarily because scientists are not capable of discovering the source of life. One way of defining life is to list the essential characteristics and functions which appear to be common to all living creatures.