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.
What is Chronic V enous Insufficiency (CVI)? Chronic venous insufficiency (CVI) is a common cause ofleg pain and swelling, and is commonly associated withvaricose veins. It occurs when the valves of the veins donot function properly, and the circulation of blood in theleg veins is impaired.CVI may affect up to 20 percentof adults.hronic venous insufficiency (CVI) is a common cause of. leg pain and swelling, and is commonly associated with. varicose veins. It occurs when the valves of the veins do. not function properly, and the circulation of blood in the. leg veins is impaired.