Question

immune system 9. this system is the bodys defense against pathogens (germs). it uses specialized ______ blood cells to identify and destroy invaders. (immune system)

Explanation:

The immune system defends the body against pathogens (germs). The specialized blood cells it uses are white blood cells (leukocytes) which help identify and destroy invaders. For the first blank, "pathogens" fits as they are the germs the immune system fights. For the second blank, "white" (referring to white blood cells) is the appropriate term as these cells are specialized for immune functions like identifying and destroying invaders.

Answer:

First blank: pathogens
Second blank: white