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How are bird bones adapted for flight?

1. They are thin.
2. They are hollow.
3. They are strong.
4. Birds do not have many bones.

2 Answers

5 votes
The answers will be number 4. Birds do not have many bones
User Gtludwig
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5 votes

Answer:

2. They are hollow.

Step-by-step explanation:

goo gle says

User Jacobbaer
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