Question

drag the tiles to the boxes to form correct pairs. match the immune system line of defense with its correct description includes mechanical barriers that prevent microorganisms from entering the body includes cells and processes that help remove or neutralize organisms that have penetrated mechanical barriers a complex defense that recognizes and reacts to specific organisms first line of defense second line of defense third line of defense

Explanation:

The first line of defense in the immune system consists of mechanical barriers (like skin) that prevent microorganisms from entering the body. The second line of defense includes cells and processes (such as phagocytes) that act when pathogens penetrate the first - line barriers. The third line of defense is a complex, specific response (involving B and T lymphocytes) that recognizes and reacts to specific organisms.

Answer:

first line of defense → includes mechanical barriers that prevent microorganisms from entering the body
second line of defense → includes cells and processes that help remove or neutralize organisms that have penetrated mechanical barriers
third line of defense → a complex defense that recognizes and reacts to specific organisms