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6th Grade Science: 2.1-2.2

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