| 41. | These glands are lobed containing many secretory tubules which radiate outward from the excretory canal at the center.
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| 42. | The white colour in the butterfly family Pieridae is a derivative of uric acid, an excretory product.
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| 43. | The buttocks are often taboo due to their proximity to the anus and association with the excretory system.
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| 44. | In almost every segment is a pair of excretory organs called nephridia, which are derived from coelom tissue.
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| 45. | Starfish have no distinct excretory organs; waste ammonia is removed by diffusion through the tube feet and papulae.
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| 46. | However, in the other areas, spines are equally distributed except for the vicinity of the excretory pore.
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| 47. | The male vent ( excretory and reproductive opening ) area has an enlarged anatomy and papillae ( pictured ).
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| 48. | In addition " P . noctiluca " also lacks a gaseous exchange, excretory and circulatory system.
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| 49. | Indecent material includes explicit sexual material, four-letter words and explicit descriptions of sexual activity or excretory functions.
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| 50. | No direct connection exists between the pharynx and the excretory canal, which functions in the release of liquid urine.
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