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Question

How are birds able to fly?


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Solution

Aves:

  1. Vertebrates are animals that possess a backbone/vertebral column.
  2. Vertebrates are further classified into five classes: pisces, amphibians, reptiles, aves, and mammals.
  3. Aves is the class that includes all the birds.
  4. Their forelimbs are modified into wings that are covered with feathers.
  5. The hindlimbs are engaged with the purpose of walking, perching, and swimming.
  6. The skeleton is composed of pneumatic bones which are filled with large air cavities. This makes the body very light.
  7. These features help them with the flight.
  8. Examples: pigeon, crow, sparrow, parrot, duck, etc.

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