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.
Central venous catheters (CVCs) include both centrally inserted central catheters, which are usually inserted into the subclavian or jugular vein, and peripherally inserted central catheters (PICCs), which are typically inserted into a vein in the arm. CVCs are used for administration of drugs and fluids as well as for hemodialysis.