Answer:
Water loss through the surface of terrestrial life is a problem that is addressed by the presence of a cuticle. Particularly in plants and arthropods, the cuticle serves as a protective layer that helps prevent excessive water loss and the entry of dangerous substances like parasites and toxins into their bodies. A thin layer of waxy, hydrophobic material known as the cuticle forms on the surface of the body, acting as a barrier to stop water loss. The cuticle also enables the interchange of gases and other vital compounds, as well as aids in controlling the amount of water that enters the body. Overall, the cuticle is vital to the existence of terrestrial life because it protects against external stressors.
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