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