Question

score: 45/450
what is one human system that protects people from most infections?
○ nervous system
○ bloodstream
○ digestive system
○ immune system

Explanation:

The immune system is the human system responsible for defending the body against most infections by identifying and eliminating pathogens like bacteria and viruses. The nervous system coordinates body functions, the bloodstream transports substances, and the digestive system processes food—none of these primarily protect against infections as the immune system does.

Answer:

immune system