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STD 11 - 4. Animal kingdom — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 4. Animal kingdom1 Mark
MCQ
Characteristic features such as four-chambered heart, feather and pneumatic bone is applicable to the class of vertebrate
  • A
    Cyclostomata
  • ✓
    Aves
  • C
    Reptilia
  • D
    Mammals
✓

Answer

Correct option: B.
Aves
b
It’s obvious

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