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Birds swallow food without chewing because they lack:

AThroats
BTeeth
CTongues
DTendons
Answer & Solution
Correct answer: B. Teeth
1. Grinding happens further down the tract. 2. Nothing in the beak does the work. 3. Birds have no teeth. _Source: OpenStax Biology 2e, Chapter 34, Animal Nutrition and the Digestive System._
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