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Which terrestrial vertebrate group is extremely rare in deserts?
Amphibians are terrestrial vertebrates extremely rare in desert environments (although there are a some species adapted to this type of ecosystem). Amphibians are rare in deserts because they do not have a permeable skin and so they simply lose water by evaporation and desiccate. They also require an aquatic environment to reproduce, as their fecundation is external and their larva is water-dependent.
What do you Understand by Amphid? Unique to the nematodes, these paired sensory structures are located on the sides of the head. An external pore leads to an inner chamber and
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