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Structures commonly present in all vertebrate kidneys?
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- Describe structure of the nephron. How is the mammalian nephron capable of creating concentrated urine? How does filtration take place?What are the differences in the structure and mechanism of excretion between the metanephric type of kidney in vertebrates and the Malpighian tubules of insects?Please describe kidneys and excretion in an Asian Elephant
- Describe what happens during the following stages in urine forma-tion in the mammalian nephron: filtration, tubular reabsorption, tubular secretion.Explain how insects are capable of secreting concentrated urine without depending on high blood pressure filtration.Compare the positions of the kidneys in the fetal pig with those in the human.