The serotoninergic nuclei of the diffuse modulatory system have a role in pain an locomotion. Specifically, the Magnus raphe nucleus is a part of the motor system in the brain and has a role in mediating pain. Together with the cerebellum, it has a role in regulating movement and its connection to the spinal cord enables it to inhibit pain.
The removal of Balanus shows that the realized niche of Chthamalus is smaller than its fundamental niche. <span>These two species of barnacle do not show competitive exclusion.</span>
