Why must the smooth skin of amphibians remain moist for survival?
Answer
They rely on cutaneous respiration to absorb oxygen.
Amphibians, such as frogs and salamanders, possess thin, smooth, and permeable skin that they utilize for a portion of their necessary oxygen intake. This process is known as cutaneous respiration. Because this gas exchange occurs directly through the skin surface, the skin must remain moist; if it dries out, the amphibian effectively suffocates due to the inability to absorb sufficient oxygen, forcing them to remain close to damp habitats or water sources.
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