How can you estimate the concentration of the urine that a species of rodent produces if the only information you are given is a photograph of an intact kidney from that species? Explain
What will be an ideal response?
You can tell from the shape of the kidney: rodents that do not produce highly concentrated urine have relatively short loops of Henle and a short renal papilla. The kidneys of these species are bean shaped, and the renal papilla lies within the contour of the cortex. Species of rodents that produce concentrated urine have long loops of Henle and long renal papillae that extend beyond the cortex.
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Fill in the blank(s) with the appropriate word(s).