| 1. | In small-bodied marine invertebrates, the skin is the most important excretory organ.
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| 2. | It occurs in modified excretory organs known as Malpighian tubules in the abdomen.
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| 3. | Although the body contains a haemocoel, there are no circulatory, respiratory, or excretory organs.
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| 4. | They may also be simply excretory organs ( hydathodes ), used for exuding surplus metabolic products.
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| 5. | The excretory organs of barnacles are maxillary glands.
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| 6. | These beetles have an excretory organ that produces an odor telling the ants they mean no harm.
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| 7. | Starfish have no distinct excretory organs; waste ammonia is removed by diffusion through the tube feet and papulae.
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| 8. | The FCC generally describes indecency as programming that explicitly depicts or describes sexual or excretory organs or functions.
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| 9. | In almost every segment is a pair of excretory organs called nephridia, which are derived from coelom tissue.
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| 10. | The heart is divided into two equal halves, each with its own nephridial excretory organs, which empty into the mantle cavity.
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