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steposvetlana [31]
3 years ago
9

The ring of muscles that guards the opening between the stomach and the duodenum is the

Biology
1 answer:
NNADVOKAT [17]3 years ago
3 0
<span>The ring of muscles that guards the opening between the stomach and the duodenum is the </span>pyloric sphincter
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The finches on Galapagos Islands had different beak

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