Why does the excretion of nitrogenous wastes from protein metabolism present a s

Question

Why does the excretion of nitrogenous wastes from protein metabolism present a special problem in water conservation? Briefly contrast the osmoregulatory challenges of metabolic waste excretion in aquatic and terrestrial habitats. How do animals such as sponges, cnidarians, and some flatworms who lack excretory systems prevent the accumulation of metabolic wastes? Why does the excretion of nitrogenous wastes from protein metabolism present a special problem in water conservation? Briefly contrast the osmoregulatory challenges of metabolic waste excretion in aquatic and terrestrial habitats. How do animals such as sponges, cnidarians, and some flatworms who lack excretory systems prevent the accumulation of metabolic wastes?

Explanation / Answer

Nitrogenous wastes required lot of water to flush out from body thats why they are problematic in water conservation.

In terrestrial animals water is constantly lost through evaporation,urination which need to be replaced by drinking water periodically. They are osmoregulators

Marine animals are osmoconformers they do not regulate there osmolarity

Sponges , cnidarians use water currents and diffusion process to remove metabolic waste from there body

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