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.
CVS also is an abbreviation for Computer Vision Syndrome . Concurrent Versions System (CVS) is a program that lets a code developer save and retrieve different development versions of source code . It also lets a team of developers share control of different versions of files in a common repository of files. This kind of program is sometimes known as a version control system .