| 31. | They have various functions such as storage of reserves, excretory materials, pigments, and minerals.
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| 32. | The excretory system is made of many tubes with many flame cells and excretory pores on them.
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| 33. | The excretory system is made of many tubes with many flame cells and excretory pores on them.
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| 34. | These beetles have an excretory organ that produces an odor telling the ants they mean no harm.
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| 35. | Although the body contains a haemocoel, there are no circulatory, respiratory, or excretory organs.
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| 36. | They may also be simply excretory organs ( hydathodes ), used for exuding surplus metabolic products.
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| 37. | The FCC generally describes indecency as programming that explicitly depicts or describes sexual or excretory organs or functions.
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| 38. | It's the first computer-generated gross-out movie based on the human excretory system.
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| 39. | Many arachnids have only one or the other type of excretory gland, although several do have both.
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| 40. | Like flatworms, they have no circulatory or respiratory systems, but they also lack an excretory system.
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