Our Body's First Line of Defense Against Foreign Invaders Is

Question

Our body's first line of defense against foreign invaders is the ____,which acts as a barrier.
A) kidney
B) brain
C) skin
D) heart
E) stomach

Accepted Answer

The skin is the body's largest organ and acts as a physical barrier to prevent foreign invaders, such as pathogens and toxins, from entering the body. It helps to protect the body's internal organs and tissues from damage and infection.