Steve is a construction worker. He cut his hand deeply. The cut then became infected. Which line of immune defense was broken in his immune system

Respuesta :

The line of immune defense that was broken was the skin. It might not look helpful but it's a very important part of the body.
Hello There!

The line of immune defense broken was the skin. The skin protects a lot of our body.

Hope This Helps You!
Good Luck :) 

- Hannah ❤