| 11. | The excretory system is responsible for osmoregulation and consists of blind-ending flame bulbs communicating through a duct system.
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| 12. | The buttocks are often taboo due to their proximity to the anus and association with the excretory system.
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| 13. | He successfully has the digestive system installed in his body, and plans to create an excretory system to match.
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| 14. | Among the problems the municipality faces are the delay of the excretory system and some bungling of the street layout.
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| 15. | It was mostly about the excretory system, because that's the part that our culture seems to find the most disgusting.
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| 16. | "' Secernentea "'are the main class of nematodes, characterised by numerous caudal papillae and an excretory system possessing lateral canals.
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| 17. | The excretory system consists of segmented " kidneys " containing protonephridia instead of nephrons, and quite unlike those of vertebrates.
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| 18. | The excretory system contains a pair of nephridia in every segment, except for the first three and the last ones.
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| 19. | The kidneys and excretory system are much the same as in other reptiles, but crocodilians do not have a bladder.
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| 20. | The lacrimal system is made up of a secretory system, which produces tears, and an excretory system, which drains the tears.
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