1. Tardigrade
  2. Question
  3. Biology
  4. Characteristic features such as four-chambered heart, feather and pneumatic bone are applicable to which class of vertebrate?

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Q. Characteristic features such as four-chambered heart, feather and pneumatic bone are applicable to which class of vertebrate?

J & K CETJ & K CET 2006

Solution:

Pneumatic bones are the characteristic features of class Aves (birds). These bones help the birds during flight. Aves also contain four chambered heart and feathers.