Treatment. There's currently no cure for Parkinson's disease, but treatments are available to help relieve the symptoms and maintain your quality of life. These treatments include: supportive therapies â such as physiotherapy ; medication ; surgery (for some people)
Reinforcement is a necessary requirement for both the parapatric and sympatric theories of speciation. It is the process by which a hybrid zone (an area of contact between different forms of a species) develops into a full species barrier.
Sympatric speciation means that one population of one species became two species while in the same geographic region with no physical separation. This usually occurs because different inviduals of the same species begin to occupy a distinct niche and eventually become specifically adapted for that role.\\.