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- Some animals have an inborn instinct to swallow gastroliths in order to improve the breaking down of food inside their stomachs.
Question 1:
Some animals have an inborn instinct to swallow gastroliths in order to improve the breaking down of food inside their stomachs. What kind of objects are gastroliths?
A. Rocks
B. Plants that are rich in digestive enzymes
C. Insects
D. Excrements
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