| 11. | Posterior to the scolex is the neck, which is an unsegmented, poorly differentiated region.
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| 12. | This means that the unsegmented cerci of extant species of Forficulina is probably not an adaptation for wing folding.
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| 13. | "C . elegans " is an unsegmented pseudocoelomate, and lacks a respiratory and a circulatory system.
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| 14. | This stage resembles the adult, but has a simple, unsegmented abdomen and only three pairs of thoracic limbs.
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| 15. | It has an unsegmented, positive sense, single-stranded RNA genome which is approximately 11.7kb long.
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| 16. | The extinct suborders have tarsi with five segments ( unlike the three found in Neodermaptera ) as well as unsegmented cerci.
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| 17. | The broadly oval front section comprises the head and the first five thoracic nauplii, are free-swimming and unsegmented.
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| 18. | A key anatomical innovation in acanthomorphs is hollow and unsegmented spines at the anterior edge of the dorsal and anal fins.
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| 19. | Later instar larvae are physogastric ( swollen posteriorly ), with simple setae, short unsegmented legs, and reduced mouthparts.
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| 20. | The paraxial mesoderm is initially called the segmental plate in the chick embryo or the unsegmented mesoderm in other vertebrates.
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