Question

part b - lo 2, explain how your immune system protects you, factors that diminish its effectiveness, and what you can do to boost its effectiveness
the immune system can recognize and destroy many foreign substances that can cause disease, such as viruses, bacteria, fungi, parasites, toxins, or cells from other organisms.
which of the following are the body’s physical barrier defenses to pathogens?
select all that apply.
□ inflammation and fever
□ antibodies
□ skin
□ cilia in the lungs and respiratory tract

Explanation:

Skin acts as a physical barrier preventing pathogens from entering the body. Cilia in the lungs and respiratory tract can trap and move pathogens out of the body. Inflammation and fever are part of the body's immune - response but not physical barriers. Antibodies are proteins involved in the immune response, not physical barriers.

Answer:

C. skin, D. cilia in the lungs and respiratory tract