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6th Grade Science: 2.1-2.2

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Across
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Animals with backbones
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The final stage of an insect
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Invertebrates that have external skeletons, jointed appendages, and segmented bodies
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Tiny openings in an insects body that allows air to pass through
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The eating and growing stage
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Founder of the classification system
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Made of protein and chitin
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The beginning stage of an insect
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A miniature, wingless adult
Down
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Help insects to see light and shadows
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A breathing tube
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The resting stage
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The process of arranging animals or other things into groups according to their similarities
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A transformation in appearance
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Animals without backbones
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Smallest group in the classification system
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Similar to lungs in an insect
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Enable insects to see in many directions
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Help insects to feel, hear, and taste
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Largest group in the classification system