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प्रश्न
List out some common features in cat, rat, and bat.
उत्तर
Cat, rat, and bat belong to Class- Mammalia and have the following common features:
- Presence of vertebral column.
- Presence of hair, sweat glands, and oil glands on the skin.
- All are warm-blooded.
- Their females are viviparous.
- Presence of 4-chambered heart.
- Presence of mammary glands.
- Presence of diaphragm.
- Presence of external ear.
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