Multiple choice

Which of the following is NOT a characteristic of birds?

  1. Lay eggs

  2. Feathers

  3. Gills

  4. No teeth
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Birds have feathers, lay eggs, and lack teeth, but they do not have gills. Gills are used by fish and some amphibians to breathe underwater.

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