BIOLOGY 11 



been said already it will be seen that the terms anatomy, 

 physiology, and hygiene refer to methods of study applied 

 to either plants or animals, for example, flant physiology, 

 animal anatomy, etc. — or they may be restricted to indi- 

 vidual members of each group, human physiology, horse 

 anatomy, yeast physiology, etc. In short, physiology, 

 anatomy, and hygiene are merely one phase of the study 

 of living matter (biology) and while our present problem 

 is the human body, we must bear in mind that many of 

 the laws that hold true of our bodies are merely special 

 cases of laws which apply to all living organisms. 



The great problem which all biologists, zoologists, and 

 physiologists are seeking to answer is, " "Wliat is life? " 

 and in whatever field they may be working, their results 

 are valuable and throw light upon this main, great 

 problem. 



