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Akimi4 [234]
3 years ago
7

Help ASAP

Biology
1 answer:
Naya [18.7K]3 years ago
5 0

Answer:

Option D, It is highly efficient, as oxygen-rich air enters the lungs even while a bird is exhaling

Explanation:

In the respiratory system of birds, air flows only in one direction due to which a bird is capable to take in oxygen even when it is exhaling. The air sacs allow only unidirectional flow of air, which  is more fresh and contains high oxygen content.  Even a bird’s lung are capable to store and pump air, when they are at stationary position.

Hence, option D is correct.

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What does that leave as the source for the energy that is now in the fold molecules?
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Explanation:

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Which two of Earth's spheres interact when mountain glaciers melt due to hot lava released by a volcano? (5 points)
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3 years ago
An individual with this karyotype would be described as A) an abnormal male with nondisjunction. B) a normal male with the expec
kaheart [24]
<h2>Answer:</h2>

The correct answer is option A which is an abnormal male with nondisjunction.

<h3>Explanation:</h3>

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