What are some descriptions of echinodermata?

Superoxide dismutase (SOD) is an enzyme that catalyzes the conversion of superoxides into oxygen and hydrogen peroxide by disproportionation. It is widely found in various animals, plants and microorganisms and is an important antioxidant. Superoxide dismutase protects cells exposed to oxygen, which can remove superoxide anion radicals in the body and effectively resist the damage of oxygen free radicals to organisms. If you still feel confused about this question, the link below may be helpful: https://www.creative-enzymes.com/similar/SOD_659.html