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Q: What group of animals is thought to have moved onto land to become the first amphibians?
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- What three processes occur in urine formation?Why is albumin not normally present in the urine?The main function of the transitional epithelium in the ureter is (a) not the same as that of the transitional epithelium in the bladder, (b) protection against kidney stones, (c) secretion of mucus, (d) resorption, (e) stretching.