<span>An amphibian that lacks lungs and breathes entirely through its skin would have to be smaller than an amphibian with lungs so that the small oxygen intake correlates with
the small surface area of the amphibian. This would then allow it to breath efficiently.</span>
<span>It is a way to camouflage the squirrel in a changing habitat.</span>
Water, dissolved ions, large water soluble molecules, smaller minute molecules, and proteins
