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Human kidneys can produce urine nearly "...

Human kidneys can produce urine nearly `"______"` times concentrated then the initial filtrate formed.

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To solve the question regarding how many times concentrated urine produced by human kidneys is compared to the initial filtrate formed, we can follow these steps: ### Step 1: Understand the Structure of the Kidney The functional unit of the kidney is the nephron, which consists of two main parts: the renal corpuscle and the renal tubule. The renal corpuscle includes the glomerulus and Bowman's capsule, while the renal tubule consists of the proximal convoluted tubule (PCT), loop of Henle, and distal convoluted tubule (DCT). **Hint:** Remember the structure of the nephron and its components. ### Step 2: Process of Filtration ...
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