There are indications that it is similar to the mechanism shown to cause orientation bias in cat concentric cells.
At the centre of the chamber base, a typical, rather small basal scar can be observed on all specimens, consisting of two concentric circles.
One checks easily that this is the only other possibility for a cycle of circles of period 3 that is concentric about the origin.
They were asked to arrange their attributes in one of three concentric circles (center, intermediate, and outer) corresponding to importance of each attribute.
In the convoy, important relationships are identified and situated in three concentric circles around the self, arranged according to importance and closeness.
In any case, all schemata representing concentric circles are misleading (as in discussions of identity).
The orientation boundary is made up of two offset concentric circles.
The excretory pore is located at the posterior extremity of the worm with the tegument forming tight concentric bands around the pore.
