Answer. The bodies of birds are covered with specialized structures known as feathers that grow out of the skin. No other animal has them. Feathers act as a barrier against water and heat loss, are light but very strong, and provide a smooth, flat surface for pushing against the air during flight.
The bodies of birds are covered with specialized structures known as feathers that grow out of the skin. No other animal has them. Feathers act as a barrier against water and heat loss, are light but very strong, and provide a smooth, flat surface for pushing against the air during flight.
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Answer:
feathers
Answer. The bodies of birds are covered with specialized structures known as feathers that grow out of the skin. No other animal has them. Feathers act as a barrier against water and heat loss, are light but very strong, and provide a smooth, flat surface for pushing against the air during flight.
Answer:
The bodies of birds are covered with specialized structures known as feathers that grow out of the skin. No other animal has them. Feathers act as a barrier against water and heat loss, are light but very strong, and provide a smooth, flat surface for pushing against the air during flight.