Final answer:
Necrotizing fasciitis destroys the tissue covering the muscle and is known as the 'flesh-eating' bacteria caused by Streptococcus pyogenes.
Step-by-step explanation:
A characteristic of necrotizing fasciitis is that it destroys the tissue covering the muscle. Necrotizing fasciitis, also known as flesh-eating bacterial syndrome, is a rare but potentially life-threatening condition caused by bacteria such as Streptococcus pyogenes. The infection spreads rapidly, causing large areas of skin to detach and die, requiring surgical removal of dead or infected tissue along with antibiotic treatment.