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oxygen in the water varies widely because of the... # of producers, # of decomposers, and temperature.
Answer:
Urine is more concentrated than initial filtrate. Urine is, in fact, four times more concentrated than initial filtrate.
Explanation:
The urinary system is the one in charge of filtrate blood and propduce urine. The main stars in the system are kidneys and the functional unit of them are the nephrons.
There are many steps in producing urine. Fluid goes between different parts of the kidney: renal tubule, renal corpuscle, bowman's capsule, etc. We have through all these parts these following steps: filtration, reabsorption to blood, secretion from blood and excretion.
From filtrate, the boody reabsorbs sodium chloride, glucose, water and amino acids. When the fluids moves down the loop of Henle, it becomes less concentrated, so it is full of water. <em>At the end, urine is four times more concentrated than initial filtrate. </em>
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