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Animal Kingdom — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYAnimal Kingdom2 Marks
Question
The long bones are hollow and connected by air passage. They are the characteristics of:
  1. Aves.
  2. Mammals.
  3. Reptilia.
  4. Land vertebrates.
✓

Answer

  1. Aves.

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