The answer is 9 but I don’t see it there so probably it should be 6 or something.
Answer from: Quest
the sphincter muscles at the end of the digestive tract is the anus.
Answer from: Quest
you should wear a lead protective shield when having teeth x-rays
hope i
-lavira : )
Another question on Biology
Biology, 20.06.2019 18:04
The friction red blood cells encounter when moving past each other. cardiac output: the amount of friction blood encounters during flow through blood vessels. blood pressure: the force of the blood against the vessel wall. blood viscosity: the volume of blood pumped out by one ventricle each minute.