Nature of skin in four classes of tetrapods
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Tetrapoda: Animals have four limbs for locomotion and hence the name tetrapoda. Tetrapoda is divided into four classes, viz. amphibia, reptilia, aves and mammalia.
1. Amphibia: These animals are adapted to live both in water and land.
2. Reptilia: These animals show crawling movement for locomotion.
3. Aves: The body is covered with feathers. Forelimbs are modified into wings.
4. Mammalia: The body is covered with hairs. Skin has seat glands and sebaceous glands.
1. Amphibia: These animals are adapted to live both in water and land.
2. Reptilia: These animals show crawling movement for locomotion.
3. Aves: The body is covered with feathers. Forelimbs are modified into wings.
4. Mammalia: The body is covered with hairs. Skin has seat glands and sebaceous glands.
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