Mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology  all aspects of its life. So a change in an organism's DNA can cause changes in all aspects of its life.
continuously variable transmission (CVT)=An automatic transmission that can change seamlessly through an infinite number of effective gear ratios between maximum and minimum values. Automatic transmission= Automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually.
Cerebral Vein Thrombosis. CVT is a very uncommon disease with an estimated incidence of 4 per 1 000 000 per year and with mortality rates between 5% and 30%.27 CVT has been associated with several causes and risk factors, such as inherited thrombophilia, oral contraceptives, pregnancy, and puerperium.