Autoimmune diseases act at the principal of:
Correct answer: B. Self against self
- A. Self against antigens
- B. Self against self
- C. Antigens against self
- D. Antigens self -destroyed
Explanation
Therefore, the correct answer is B) Self against self, as autoimmune diseases occur when the immune system attacks the body's own cells or tissues.
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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