The system is a group of proteins in the blood that attack pathogens that enter the body and kill them. the system is a group of proteins in the blood that attack pathogens that enter the body and kill them.

The Complement System is a group of proteins in the blood that attack pathogens that enter the body and kill them.

The complement system is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes inflammation, and attacks the pathogen's cell membrane.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

voluntary muscles are controlled by the cerebellum.