Arthropods

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Across
  1. 1. – Sensory appendages on the head.
  2. 4. – The middle body region where legs and wings attach (in insects).
  3. 5. – The fused head and thorax (common in spiders and crustaceans).
  4. 7. – Openings on the body surface used to breathe.
  5. 8. – A long, specialized feeding tube.
  6. 10. – Tubes for breathing in many terrestrial arthropods.
  7. 11. – Jaw-like mouthparts used for biting or chewing.
  8. 12. Eye – An eye composed of many individual units (ommatidia).
  9. 14. – The individual visual units of a compound eye.
  10. 15. – A limb or structure attached to the body, such as legs or antennae.
  11. 17. – A hard outer covering that supports and protects the body.
  12. 18. – A repeated body unit in arthropods.
  13. 19. – The polysaccharide that makes up the exoskeleton.
Down
  1. 1. – The rear body region of many arthropods.
  2. 2. – A hard, protective shield covering part of the body.
  3. 3. – Claw-bearing legs (common in crustaceans).
  4. 6. – The immature form of an insect that undergoes metamorphosis.
  5. 9. – A major developmental change (e.g., larva to adult).
  6. 13. – A developmental stage between larva and adult in some insects.
  7. 16. (Ecdysis) – Shedding the exoskeleton to allow growth.