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Answer:

Respiratory System. All reptiles breathe through their lungs. The reptile lung has a much greater surface area for the exchange of gases than the lungs of amphibians. Many reptiles' lungs have little sacs called alveoli, across which gas is exchanged.

Explanation:

Answer:

The Respiratory system means that all reptiles breathe through their lungs.

The reptiles' lungs has a greater surface area for the exchanging gases than the lungs of amphibians.

Most reptiles' lungs have sacs that are called alveoli, across which the gas is exchanged.

there u go

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