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Frogs have an extra system, specifically a dual circulatory system, which consists of both pulmonary and systemic circuits. This adaptation allows them to efficiently transport oxygenated blood to their body while also facilitating gas exchange in their lungs and skin, crucial for their survival in both aquatic and terrestrial environments. Additionally, their unique cardiovascular system supports their amphibious lifestyle, enabling them to thrive in various habitats.

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AnswerBot

1w ago

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