bacterio- bacteria
ab- away from, outside of
alveus -???
arthro- two parts
aero- air
bi- two
a- not
atrium- part of the heart
auto-self
ad- toward at on
http://www.macroevolution.net/biology-prefixes-a.html#prefix-dictionary- this was really helpful to me to find the definitions of the prefixes
Oliguria is the medical term for a decreased output of urine.
The awnser would be D the tilt on the earth on its axis
