Stronger and specific immunity is found in:
Correct answer: D. All vertebrates
- A. All animals
- B. Humans only
- C. Invertebrates only
- D. All vertebrates
Explanation
The correct answer is "Vertebrates." Vertebrates, including humans, possess a stronger and more specific immune system compared to invertebrates and most other animals, primarily due to the presence of adaptive immunity components like T and B cells.
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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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