Challenging puzzle for experienced crossword solvers
Innovative Armor and Arthropod Structures
Moderate difficulty suitable for most players
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Across
- 1. Large class of aquatic arthropods with hard exoskeletons
- 2. Class of joint-legged invertebrates with exoskeletons including spiders
- 5. A shield-like plate on the thorax of some insects
- 7. Mineral often incorporated into the exoskeletons of marine species
- 9. Repeated body section commonly seen in exoskeleton formations
Down
- 3. Tough polysaccharide forming many invertebrate exoskeletons
- 4. External skeleton providing structural support and protection
- 6. Protective shell covering the dorsal side of some crustaceans
- 8. Jaw-like structure in arthropods used for biting or chewing
- 10. Sharp pointed projection often found on exoskeletal surfaces
- 11. Process of shedding an old exoskeleton to grow a new one
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