Question

bird has how many air sags
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Answer 1

Generally long-distance migrants seem to start out at about 5,000 feet and then progressively climb to around 20,000 feet. Just like jet aircraft, the optimum cruise altitude of migrants increases as their "fuel" is used up and their weight declines.

birds have 9 air sacs

Answer 2

Answer:

Hi friend

Here is your answer

A bird has 9 air sacs

Thank you