Question

what is it called when the bodys immune system attacks its healthy cells, mistaking them for pathogens?
an immunodeficiency disorder
cancer
an allergy
an autoimmune disorder

Explanation:

• An immunodeficiency disorder is when the immune system is weakened and can't fight infections well, not attacking healthy cells.
• Cancer is abnormal cell growth, not related to immune system attacking healthy cells.
• An allergy is the immune system overreacting to harmless substances (allergens), not attacking the body's own cells.
• An autoimmune disorder is defined as the immune system mistakenly attacking the body's own healthy cells, thinking they are pathogens.

Answer:

D. an autoimmune disorder