Multiple choice

Which of the following is a characteristic of animals of class Aves?

  1. Forelimbs are modified into wings.

  2. Feathers and scales are absent.

  3. Skin bears a number of sweat and oil glands.

  4. Females have mammary glands for feeding the young.

  5. Bones are not hollow or pneumatic.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option as this is a characteristic of animals of class Aves.

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