Common Words:
* Bio (short for biography)
* Bio (short for biology)
* Microbio (related to microorganisms)
* Psychobio (relating to the biological aspects of psychology)
* Sociobio (relating to the biological basis of social behavior)
* Astrobio (relating to the study of life in the universe)
Less Common Words:
* Aerobio (relating to airborne organisms)
* Agobio (relating to agricultural biology)
* Aquabio (relating to aquatic organisms)
* Geobio (relating to the biological aspects of geology)
* Lithobio (relating to organisms living in rock)
* Photobio (relating to the biological effects of light)
* Thermbio (relating to organisms living in hot environments)
Medical Terms:
* Electrocardio (relating to the electrical activity of the heart)
* Electroencephalogra (relating to the electrical activity of the brain)
* Cryobio (relating to the use of low temperatures in biology)
* Cytobio (relating to the study of cells)
* Histobio (relating to the study of tissues)
* Phytobio (relating to plant biology)
This is not an exhaustive list, as there are many more words ending in "bio" depending on the field of study.