| 11. | On one movement, the maxillae are moved as far forward as possible.
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| 12. | The maxillae do not slip back because the toothed blades grip the skin.
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| 13. | In place of the labium, crustaceans possess a second pair of maxillae.
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| 14. | The mouthparts consist of mandibles, maxillules and maxillae.
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| 15. | Nitrogenous waste is excreted through glands on the maxillae, antennae, or both.
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| 16. | The maxillae and palatines meet medially in the upper jaw developing a midline suture.
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| 17. | The prolateral sides of the maxillae are elongated.
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| 18. | Their zygomatic arches form elongations of the maxillae.
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| 19. | Following them, the first two teeth of the maxillae had three posterior section.
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| 20. | There was no zygomatics, no nasal aperture, no maxillae, no eye orbits,
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