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1.Fill in the blanks.are a pair of tube-like structure that connect the kidneys to theurinary bladder2. Phloem tubes are also known as3. The filtration units of kidneys are known as4.is formed with the combination of haemoglobin and oxygen.has the series of valves which prevents the back flow ofdeoxygenated blood. |
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Answer» Answer: 1) ureter 2) bast 3) nephrons 4) carboxyhemoglobin |
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