How have the terrestrial organisms adapted themselves for the conservation of water?
In the scenario of terrestrial habitat, water availability has some constraints, and that is the reason water is especially important for the terrestrial organisms for survival. When nitrogenous wastes are removed from the body, a lot of water is required to flush them out.
Since the water available in terrestrial habitats is limited, these organisms, practice to ureotelism and uricotelism modes of excretion which need less water as compared to ammoniotelic organisms. Also, the organisms that live in extremely dry places practice uricotelism so that more water is retained inside their bodies.