What is the definition of an antigen? a protein produced by plasma cells that attacks pathogens a type of white blood cell a part of the membrane attack complex of the complement system a form of immune deficiency anything the immune system recognizes as foreign to the body?

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy