Biology: Biology is a branch of natural sciences that deals with the study of living beings. The word biology comes from the Greek language “Bios” meaning “live” and “Logos” meaning “thought or reasoning”. Thus biology means the study of life.
While it's hard to define life itself, we can see it through these processes.
Digestion
Respiration
Metabolism
Movement
Growth
Development
Excretion
Irritability
Reproduction
