Answer:
In celiac disease, gluten triggers the immune system to damage villi. Villi (VIL-eye) are finger-like projections lining the small intestine that absorb nutrients from food and send them into the bloodstream. Damaged villi can't absorb the vitamins and minerals that a child needs to grow.
Explanation:
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Correct me if im wrong(if its wrong sorry)
The correct answer is "convergent evolution".
Convergent evolution is defined as the process wherein organisms from different ancestors or even organisms from different phylums in an extent develop similar traits as a result from thriving in the same environment. The most commonly observed example is the flying mechanism shared by insects, birds, bats (mammals), and even pterosaurs (reptiles).
Function of dna is to transfer characters from parents to offsprings